55620064 has 12 divisors (see below), whose sum is σ = 109502064. Its totient is φ = 27810016.

The previous prime is 55620053. The next prime is 55620079. The reversal of 55620064 is 46002655.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 869032 + ... + 869095.

It is an arithmetic number, because the mean of its divisors is an integer number (9125172).

Almost surely, 2^55620064 is an apocalyptic number.

It is an amenable number.

55620064 is a deficient number, since it is larger than the sum of its proper divisors (53882000).

55620064 is a wasteful number, since it uses less digits than its factorization.

55620064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738137 (or 1738129 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 55620064 is about 7457.8860275550. The cubic root of 55620064 is about 381.7190445290.

The spelling of 55620064 in words is "fifty-five million, six hundred twenty thousand, sixty-four".