55706057 has 8 divisors (see below), whose sum is σ = 61209120. Its totient is φ = 50276160.

The previous prime is 55706051. The next prime is 55706099. The reversal of 55706057 is 75060755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55706057 - 2⁴ = 55706041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55706051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16688 + ... + 19745.

It is an arithmetic number, because the mean of its divisors is an integer number (7651140).

Almost surely, 2^55706057 is an apocalyptic number.

It is an amenable number.

55706057 is a deficient number, since it is larger than the sum of its proper divisors (5503063).

55706057 is a wasteful number, since it uses less digits than its factorization.

55706057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36583.

The product of its (nonzero) digits is 36750, while the sum is 35.

The square root of 55706057 is about 7463.6490405163. The cubic root of 55706057 is about 381.9156658031.

The spelling of 55706057 in words is "fifty-five million, seven hundred six thousand, fifty-seven".