2125454000 has 80 divisors (see below), whose sum is σ = 5409936480. Its totient is φ = 805420800.

The previous prime is 2125453997. The next prime is 2125454003. The reversal of 2125454000 is 4545212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2125453997) and next prime (2125454003).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2125454000² = 9035109412232000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125454003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10034 + ... + 65966.

It is an arithmetic number, because the mean of its divisors is an integer number (67624206).

Almost surely, 2^2125454000 is an apocalyptic number.

2125454000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125454000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2704968240).

2125454000 is an abundant number, since it is smaller than the sum of its proper divisors (3284482480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2125454000 is a wasteful number, since it uses less digits than its factorization.

2125454000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55975 (or 55959 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2125454000 is about 46102.6463448683. The cubic root of 2125454000 is about 1285.7323466011.

Adding to 2125454000 its reverse (4545212), we get a palindrome (2129999212).

The spelling of 2125454000 in words is "two billion, one hundred twenty-five million, four hundred fifty-four thousand".