553897872 has 160 divisors (see below), whose sum is σ = 1745424000. Its totient is φ = 166786560.

The previous prime is 553897871. The next prime is 553897879. The reversal of 553897872 is 278798355.

553897872 is a `hidden beast` number, since 553 + 8 + 9 + 7 + 87 + 2 = 666.

It is a super-2 number, since 2×553897872² = 613605705212256768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553897871) 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, 1087954 + ... + 1088462.

It is an arithmetic number, because the mean of its divisors is an integer number (10908900).

Almost surely, 2^553897872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553897872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872712000).

553897872 is an abundant number, since it is smaller than the sum of its proper divisors (1191526128).

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

553897872 is a wasteful number, since it uses less digits than its factorization.

553897872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 754 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 553897872 is about 23535.0349904138. The cubic root of 553897872 is about 821.2522370198.

The spelling of 553897872 in words is "five hundred fifty-three million, eight hundred ninety-seven thousand, eight hundred seventy-two".