55512457 has 16 divisors (see below), whose sum is σ = 74535552. Its totient is φ = 39928320.

The previous prime is 55512439. The next prime is 55512461. The reversal of 55512457 is 75421555.

55512457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55512457 - 2⁷ = 55512329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55512487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26728 + ... + 28729.

It is an arithmetic number, because the mean of its divisors is an integer number (4658472).

Almost surely, 2^55512457 is an apocalyptic number.

It is an amenable number.

55512457 is a deficient number, since it is larger than the sum of its proper divisors (19023095).

55512457 is a wasteful number, since it uses less digits than its factorization.

55512457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55488.

The product of its digits is 35000, while the sum is 34.

The square root of 55512457 is about 7450.6682250655. The cubic root of 55512457 is about 381.4727175972.

It can be divided in two parts, 5551 and 2457, that added together give a palindrome (8008).

The spelling of 55512457 in words is "fifty-five million, five hundred twelve thousand, four hundred fifty-seven".