55646073 has 24 divisors (see below), whose sum is σ = 93819648. Its totient is φ = 31119552.

The previous prime is 55646069. The next prime is 55646089. The reversal of 55646073 is 37064655.

55646073 is a `hidden beast` number, since 5 + 5 + 646 + 0 + 7 + 3 = 666.

It is not a de Polignac number, because 55646073 - 2² = 55646069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55646053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6436 + ... + 12357.

It is an arithmetic number, because the mean of its divisors is an integer number (3909152).

Almost surely, 2^55646073 is an apocalyptic number.

It is an amenable number.

55646073 is a deficient number, since it is larger than the sum of its proper divisors (38173575).

55646073 is a wasteful number, since it uses less digits than its factorization.

55646073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18853 (or 18850 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 55646073 is about 7459.6295484427. The cubic root of 55646073 is about 381.7785349526.

The spelling of 55646073 in words is "fifty-five million, six hundred forty-six thousand, seventy-three".