55920599 has 16 divisors (see below), whose sum is σ = 67931136. Its totient is φ = 44937600.

The previous prime is 55920589. The next prime is 55920607. The reversal of 55920599 is 99502955.

It is a cyclic number.

It is not a de Polignac number, because 55920599 - 2²⁴ = 39143383 is a prime.

It is a super-2 number, since 2×55920599² = 6254226785037602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55920539) 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, 36254 + ... + 37764.

It is an arithmetic number, because the mean of its divisors is an integer number (4245696).

Almost surely, 2^55920599 is an apocalyptic number.

55920599 is a deficient number, since it is larger than the sum of its proper divisors (12010537).

55920599 is a wasteful number, since it uses less digits than its factorization.

55920599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846.

The product of its (nonzero) digits is 182250, while the sum is 44.

The square root of 55920599 is about 7478.0076892178. The cubic root of 55920599 is about 382.4053312071.

The spelling of 55920599 in words is "fifty-five million, nine hundred twenty thousand, five hundred ninety-nine".