55070057 has 8 divisors (see below), whose sum is σ = 64401216. Its totient is φ = 46104912.

The previous prime is 55070053. The next prime is 55070063. The reversal of 55070057 is 75007055.

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

It is not a de Polignac number, because 55070057 - 2² = 55070053 is a prime.

It is a super-2 number, since 2×55070057² = 6065422355966498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55070051) 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, 91178 + ... + 91779.

It is an arithmetic number, because the mean of its divisors is an integer number (8050152).

Almost surely, 2^55070057 is an apocalyptic number.

It is an amenable number.

55070057 is a deficient number, since it is larger than the sum of its proper divisors (9331159).

55070057 is a wasteful number, since it uses less digits than its factorization.

55070057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183007.

The product of its (nonzero) digits is 6125, while the sum is 29.

The square root of 55070057 is about 7420.9202259558. The cubic root of 55070057 is about 380.4566463188.

It can be divided in two parts, 550 and 70057, that added together give a palindrome (70607).

The spelling of 55070057 in words is "fifty-five million, seventy thousand, fifty-seven".