55552897900 has 36 divisors (see below), whose sum is σ = 120561033600. Its totient is φ = 22219086400.

The previous prime is 55552897879. The next prime is 55552897921. The reversal of 55552897900 is 979825555.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55552897879) and next prime (55552897921).

It is a super-2 number, since 2×55552897900² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1496565 + ... + 1533235.

It is an arithmetic number, because the mean of its divisors is an integer number (3348917600).

Almost surely, 2^55552897900 is an apocalyptic number.

55552897900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55552897900 is an abundant number, since it is smaller than the sum of its proper divisors (65008135700).

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

55552897900 is a wasteful number, since it uses less digits than its factorization.

55552897900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51834 (or 51827 counting only the distinct ones).

The product of its (nonzero) digits is 5670000, while the sum is 55.

The spelling of 55552897900 in words is "fifty-five billion, five hundred fifty-two million, eight hundred ninety-seven thousand, nine hundred".