54206990 has 16 divisors (see below), whose sum is σ = 97895952. Its totient is φ = 21610944.

The previous prime is 54206987. The next prime is 54207011. The reversal of 54206990 is 9960245.

It is a self number, because there is not a number n which added to its sum of digits gives 54206990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5759 + ... + 11898.

It is an arithmetic number, because the mean of its divisors is an integer number (6118497).

Almost surely, 2^54206990 is an apocalyptic number.

54206990 is a deficient number, since it is larger than the sum of its proper divisors (43688962).

54206990 is a wasteful number, since it uses less digits than its factorization.

54206990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17971.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 54206990 is about 7362.5396433568. The cubic root of 54206990 is about 378.4586456147.

The spelling of 54206990 in words is "fifty-four million, two hundred six thousand, nine hundred ninety".