55315066 has 16 divisors (see below), whose sum is σ = 84480480. Its totient is φ = 27157680.

The previous prime is 55315049. The next prime is 55315087. The reversal of 55315066 is 66051355.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67801 + ... + 68611.

It is an arithmetic number, because the mean of its divisors is an integer number (5280030).

Almost surely, 2^55315066 is an apocalyptic number.

55315066 is a deficient number, since it is larger than the sum of its proper divisors (29165414).

55315066 is a wasteful number, since it uses less digits than its factorization.

55315066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 55315066 is about 7437.4098986139. The cubic root of 55315066 is about 381.0200341718.

The spelling of 55315066 in words is "fifty-five million, three hundred fifteen thousand, sixty-six".