2153554000 has 160 divisors (see below), whose sum is σ = 5665199904. Its totient is φ = 787046400.

The previous prime is 2153553979. The next prime is 2153554001. The reversal of 2153554000 is 4553512.

It can be written as a sum of positive squares in 16 ways, for example, as 1872119824 + 281434176 = 43268^2 + 16776^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153554001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2937634 + ... + 2938366.

Almost surely, 2^2153554000 is an apocalyptic number.

2153554000 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 2153554000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2832599952).

2153554000 is an abundant number, since it is smaller than the sum of its proper divisors (3511645904).

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

2153554000 is a wasteful number, since it uses less digits than its factorization.

2153554000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 866 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2153554000 is about 46406.4004206316. The cubic root of 2153554000 is about 1291.3736544283.

The spelling of 2153554000 in words is "two billion, one hundred fifty-three million, five hundred fifty-four thousand".