55966057 has 8 divisors (see below), whose sum is σ = 67723776. Its totient is φ = 45148992.

The previous prime is 55966037. The next prime is 55966063. The reversal of 55966057 is 75066955.

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

It is not a de Polignac number, because 55966057 - 2¹¹ = 55964009 is a prime.

It is a super-2 number, since 2×55966057² = 6264399072254498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55966037) 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, 235033 + ... + 235270.

It is an arithmetic number, because the mean of its divisors is an integer number (8465472).

Almost surely, 2^55966057 is an apocalyptic number.

It is an amenable number.

55966057 is a deficient number, since it is larger than the sum of its proper divisors (11757719).

55966057 is a wasteful number, since it uses less digits than its factorization.

55966057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470327.

The product of its (nonzero) digits is 283500, while the sum is 43.

The square root of 55966057 is about 7481.0465177006. The cubic root of 55966057 is about 382.5089225708.

It can be divided in two parts, 55 and 966057, that multiplied together give a palindrome (53133135).

The spelling of 55966057 in words is "fifty-five million, nine hundred sixty-six thousand, fifty-seven".