54989739 has 32 divisors (see below), whose sum is σ = 93857280. Its totient is φ = 31168800.

The previous prime is 54989707. The next prime is 54989777. The reversal of 54989739 is 93798945.

54989739 is a `hidden beast` number, since 549 + 8 + 97 + 3 + 9 = 666.

It is not a de Polignac number, because 54989739 - 2⁵ = 54989707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54989639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23649 + ... + 25869.

It is an arithmetic number, because the mean of its divisors is an integer number (2933040).

Almost surely, 2^54989739 is an apocalyptic number.

54989739 is a deficient number, since it is larger than the sum of its proper divisors (38867541).

54989739 is a wasteful number, since it uses less digits than its factorization.

54989739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368 (or 2362 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 54989739 is about 7415.5066583478. The cubic root of 54989739 is about 380.2715948506.

The spelling of 54989739 in words is "fifty-four million, nine hundred eighty-nine thousand, seven hundred thirty-nine".