55875457 has 4 divisors (see below), whose sum is σ = 60955056. Its totient is φ = 50795860.

The previous prime is 55875427. The next prime is 55875461. The reversal of 55875457 is 75457855.

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 55875457 - 2¹¹ = 55873409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55875427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2539783 + ... + 2539804.

It is an arithmetic number, because the mean of its divisors is an integer number (15238764).

Almost surely, 2^55875457 is an apocalyptic number.

It is an amenable number.

55875457 is a deficient number, since it is larger than the sum of its proper divisors (5079599).

55875457 is a wasteful number, since it uses less digits than its factorization.

55875457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079598.

The product of its digits is 980000, while the sum is 46.

The square root of 55875457 is about 7474.9887625334. The cubic root of 55875457 is about 382.3024043851.

The spelling of 55875457 in words is "fifty-five million, eight hundred seventy-five thousand, four hundred fifty-seven".