54836639 has 32 divisors (see below), whose sum is σ = 67737600. Its totient is φ = 43718400.

The previous prime is 54836633. The next prime is 54836657. The reversal of 54836639 is 93663845.

It is not a de Polignac number, because 54836639 - 2¹² = 54832543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54836639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54836633) 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, 275462 + ... + 275660.

It is an arithmetic number, because the mean of its divisors is an integer number (2116800).

Almost surely, 2^54836639 is an apocalyptic number.

54836639 is a deficient number, since it is larger than the sum of its proper divisors (12900961).

54836639 is a wasteful number, since it uses less digits than its factorization.

54836639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its digits is 466560, while the sum is 44.

The square root of 54836639 is about 7405.1765002598. The cubic root of 54836639 is about 379.9183550356.

The spelling of 54836639 in words is "fifty-four million, eight hundred thirty-six thousand, six hundred thirty-nine".