55064961 has 16 divisors (see below), whose sum is σ = 93232000. Its totient is φ = 31465584.

The previous prime is 55064957. The next prime is 55064963. The reversal of 55064961 is 16946055.

55064961 is a `hidden beast` number, since 5 + 5 + 0 + 649 + 6 + 1 = 666.

It is not a de Polignac number, because 55064961 - 2² = 55064957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55064963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145486 + ... + 145863.

It is an arithmetic number, because the mean of its divisors is an integer number (5827000).

Almost surely, 2^55064961 is an apocalyptic number.

It is an amenable number.

55064961 is a deficient number, since it is larger than the sum of its proper divisors (38167039).

55064961 is a wasteful number, since it uses less digits than its factorization.

55064961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291365 (or 291359 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 55064961 is about 7420.5768643684. The cubic root of 55064961 is about 380.4449105590. Note that the first 3 decimals are identical.

The spelling of 55064961 in words is "fifty-five million, sixty-four thousand, nine hundred sixty-one".