55732457 has 4 divisors (see below), whose sum is σ = 60799056. Its totient is φ = 50665860.

The previous prime is 55732433. The next prime is 55732499. The reversal of 55732457 is 75423755.

55732457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55732457 - 2¹⁰ = 55731433 is a prime.

It is a super-2 number, since 2×55732457² = 6212213526513698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55732457.

It is not an unprimeable number, because it can be changed into a prime (55732057) 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 3 ways as a sum of consecutive naturals, for example, 2533283 + ... + 2533304.

It is an arithmetic number, because the mean of its divisors is an integer number (15199764).

Almost surely, 2^55732457 is an apocalyptic number.

It is an amenable number.

55732457 is a deficient number, since it is larger than the sum of its proper divisors (5066599).

55732457 is a wasteful number, since it uses less digits than its factorization.

55732457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5066598.

The product of its digits is 147000, while the sum is 38.

The square root of 55732457 is about 7465.4174029320. The cubic root of 55732457 is about 381.9759882753.

The spelling of 55732457 in words is "fifty-five million, seven hundred thirty-two thousand, four hundred fifty-seven".