55615070 has 64 divisors (see below), whose sum is σ = 119180160. Its totient is φ = 18289152.

The previous prime is 55615067. The next prime is 55615093. The reversal of 55615070 is 7051655.

It is a super-2 number, since 2×55615070² = 6186072022209800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282212 + ... + 282408.

It is an arithmetic number, because the mean of its divisors is an integer number (1862190).

Almost surely, 2^55615070 is an apocalyptic number.

55615070 is an abundant number, since it is smaller than the sum of its proper divisors (63565090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55615070 is a wasteful number, since it uses less digits than its factorization.

55615070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 55615070 is about 7457.5512066629. The cubic root of 55615070 is about 381.7076196233.

The spelling of 55615070 in words is "fifty-five million, six hundred fifteen thousand, seventy".