55015064 has 16 divisors (see below), whose sum is σ = 111088320. Its totient is φ = 25391520.

The previous prime is 55015021. The next prime is 55015091. The reversal of 55015064 is 46051055.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264392 + ... + 264599.

It is an arithmetic number, because the mean of its divisors is an integer number (6943020).

Almost surely, 2^55015064 is an apocalyptic number.

It is an amenable number.

55015064 is an abundant number, since it is smaller than the sum of its proper divisors (56073256).

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

55015064 is a wasteful number, since it uses less digits than its factorization.

55015064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529010 (or 529006 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 55015064 is about 7417.2140322361. The cubic root of 55015064 is about 380.3299627104.

The spelling of 55015064 in words is "fifty-five million, fifteen thousand, sixty-four".