54979290 has 32 divisors (see below), whose sum is σ = 146612160. Its totient is φ = 14661072.

The previous prime is 54979289. The next prime is 54979297. The reversal of 54979290 is 9297945.

54979290 = 3314² + 3315² + ... + 3318².

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (54979297) 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, 101544 + ... + 102083.

It is an arithmetic number, because the mean of its divisors is an integer number (4581630).

Almost surely, 2^54979290 is an apocalyptic number.

54979290 is an abundant number, since it is smaller than the sum of its proper divisors (91632870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54979290 is a wasteful number, since it uses less digits than its factorization.

54979290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203643 (or 203637 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 54979290 is about 7414.8020877162. The cubic root of 54979290 is about 380.2475072683.

The spelling of 54979290 in words is "fifty-four million, nine hundred seventy-nine thousand, two hundred ninety".