55515146 has 16 divisors (see below), whose sum is σ = 87744384. Its totient is φ = 26290704.

The previous prime is 55515139. The next prime is 55515151. The reversal of 55515146 is 64151555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1121 + ... + 10596.

It is an arithmetic number, because the mean of its divisors is an integer number (5484024).

Almost surely, 2^55515146 is an apocalyptic number.

55515146 is a deficient number, since it is larger than the sum of its proper divisors (32229238).

55515146 is a wasteful number, since it uses less digits than its factorization.

55515146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845.

The product of its digits is 15000, while the sum is 32.

The square root of 55515146 is about 7450.8486764932. The cubic root of 55515146 is about 381.4788769569.

The spelling of 55515146 in words is "fifty-five million, five hundred fifteen thousand, one hundred forty-six".