2515454000 has 80 divisors (see below), whose sum is σ = 6121873056. Its totient is φ = 999648000.

The previous prime is 2515453999. The next prime is 2515454021. The reversal of 2515454000 is 4545152.

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

It is a super-2 number, since 2×2515454000² = 12655017652232000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309995 + ... + 318005.

Almost surely, 2^2515454000 is an apocalyptic number.

2515454000 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 2515454000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3060936528).

2515454000 is an abundant number, since it is smaller than the sum of its proper divisors (3606419056).

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

2515454000 is a wasteful number, since it uses less digits than its factorization.

2515454000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8191 (or 8175 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2515454000 is about 50154.3019092081. The cubic root of 2515454000 is about 1359.9996395616. Note that the first 3 decimals are identical.

Adding to 2515454000 its reverse (4545152), we get a palindrome (2519999152).

The spelling of 2515454000 in words is "two billion, five hundred fifteen million, four hundred fifty-four thousand".