54137889 has 20 divisors (see below), whose sum is σ = 87095316. Its totient is φ = 33314976.

The previous prime is 54137887. The next prime is 54137921. The reversal of 54137889 is 98873145.

It can be written as a sum of positive squares in 2 ways, for example, as 12960000 + 41177889 = 3600^2 + 6417^2 .

It is not a de Polignac number, because 54137889 - 2¹ = 54137887 is a prime.

It is a super-2 number, since 2×54137889² = 5861822050752642, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54137887) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24654 + ... + 26759.

Almost surely, 2^54137889 is an apocalyptic number.

It is an amenable number.

54137889 is a deficient number, since it is larger than the sum of its proper divisors (32957427).

54137889 is a wasteful number, since it uses less digits than its factorization.

54137889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51438 (or 51429 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 54137889 is about 7357.8454047364. The cubic root of 54137889 is about 378.2977623583.

The spelling of 54137889 in words is "fifty-four million, one hundred thirty-seven thousand, eight hundred eighty-nine".