55512456 has 32 divisors (see below), whose sum is σ = 140084640. Its totient is φ = 18330368.

The previous prime is 55512439. The next prime is 55512461. The reversal of 55512456 is 65421555.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8241 + ... + 13376.

It is an arithmetic number, because the mean of its divisors is an integer number (4377645).

Almost surely, 2^55512456 is an apocalyptic number.

It is an amenable number.

55512456 is an abundant number, since it is smaller than the sum of its proper divisors (84572184).

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

55512456 is a wasteful number, since it uses less digits than its factorization.

55512456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21733 (or 21729 counting only the distinct ones).

The product of its digits is 30000, while the sum is 33.

The square root of 55512456 is about 7450.6681579574. The cubic root of 55512456 is about 381.4727153066.

Subtracting 55512456 from its reverse (65421555), we obtain a palindrome (9909099).

The spelling of 55512456 in words is "fifty-five million, five hundred twelve thousand, four hundred fifty-six".