54690993 has 12 divisors (see below), whose sum is σ = 90283648. Its totient is φ = 31251960.

The previous prime is 54690959. The next prime is 54691001. The reversal of 54690993 is 39909645.

It is a happy number.

It is not a de Polignac number, because 54690993 - 2⁸ = 54690737 is a prime.

It is a super-2 number, since 2×54690993² = 5982209430652098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54690193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433993 + ... + 434118.

Almost surely, 2^54690993 is an apocalyptic number.

It is an amenable number.

54690993 is a deficient number, since it is larger than the sum of its proper divisors (35592655).

54690993 is a wasteful number, since it uses less digits than its factorization.

54690993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868124 (or 868121 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 54690993 is about 7395.3358950084. The cubic root of 54690993 is about 379.5817026879.

The spelling of 54690993 in words is "fifty-four million, six hundred ninety thousand, nine hundred ninety-three".