55002556 has 24 divisors (see below), whose sum is σ = 113555456. Its totient is φ = 22811760.

The previous prime is 55002553. The next prime is 55002581. The reversal of 55002556 is 65520055.

It is a super-3 number, since 3×55002556³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55002553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30816 + ... + 32551.

Almost surely, 2^55002556 is an apocalyptic number.

It is an amenable number.

55002556 is an abundant number, since it is smaller than the sum of its proper divisors (58552900).

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

55002556 is a wasteful number, since it uses less digits than its factorization.

55002556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63409 (or 63407 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 55002556 is about 7416.3708105784. The cubic root of 55002556 is about 380.3011371040.

The spelling of 55002556 in words is "fifty-five million, two thousand, five hundred fifty-six".