54999668 has 6 divisors (see below), whose sum is σ = 96249426. Its totient is φ = 27499832.

The previous prime is 54999667. The next prime is 54999671. The reversal of 54999668 is 86699945.

It can be written as a sum of positive squares in only one way, i.e., 47720464 + 7279204 = 6908^2 + 2698^2 .

It is a super-2 number, since 2×54999668² = 6049926960220448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54999667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6874955 + ... + 6874962.

It is an arithmetic number, because the mean of its divisors is an integer number (16041571).

Almost surely, 2^54999668 is an apocalyptic number.

It is an amenable number.

54999668 is a deficient number, since it is larger than the sum of its proper divisors (41249758).

54999668 is a wasteful number, since it uses less digits than its factorization.

54999668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13749921 (or 13749919 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 56.

The square root of 54999668 is about 7416.1761036265. The cubic root of 54999668 is about 380.2944808745.

The spelling of 54999668 in words is "fifty-four million, nine hundred ninety-nine thousand, six hundred sixty-eight".