55015464 has 32 divisors (see below), whose sum is σ = 157187520. Its totient is φ = 15718656.

The previous prime is 55015463. The next prime is 55015487. The reversal of 55015464 is 46451055.

It is not an unprimeable number, because it can be changed into a prime (55015463) 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, 163569 + ... + 163904.

It is an arithmetic number, because the mean of its divisors is an integer number (4912110).

Almost surely, 2^55015464 is an apocalyptic number.

It is an amenable number.

55015464 is an abundant number, since it is smaller than the sum of its proper divisors (102172056).

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

55015464 is a wasteful number, since it uses less digits than its factorization.

55015464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327489 (or 327485 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55015464 is about 7417.2409964892. The cubic root of 55015464 is about 380.3308844677.

The spelling of 55015464 in words is "fifty-five million, fifteen thousand, four hundred sixty-four".