55899506 has 16 divisors (see below), whose sum is σ = 90465984. Its totient is φ = 25752144.

The previous prime is 55899469. The next prime is 55899509. The reversal of 55899506 is 60599855.

It is not an unprimeable number, because it can be changed into a prime (55899509) 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, 15161 + ... + 18483.

It is an arithmetic number, because the mean of its divisors is an integer number (5654124).

Almost surely, 2^55899506 is an apocalyptic number.

55899506 is a deficient number, since it is larger than the sum of its proper divisors (34566478).

55899506 is a wasteful number, since it uses less digits than its factorization.

55899506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985.

The product of its (nonzero) digits is 486000, while the sum is 47.

The square root of 55899506 is about 7476.5972206613. The cubic root of 55899506 is about 382.3572446333.

The spelling of 55899506 in words is "fifty-five million, eight hundred ninety-nine thousand, five hundred six".