54731620 has 12 divisors (see below), whose sum is σ = 114936444. Its totient is φ = 21892640.

The previous prime is 54731603. The next prime is 54731627. The reversal of 54731620 is 2613745.

It can be written as a sum of positive squares in 2 ways, for example, as 8573184 + 46158436 = 2928^2 + 6794^2 .

It is not an unprimeable number, because it can be changed into a prime (54731627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1368271 + ... + 1368310.

It is an arithmetic number, because the mean of its divisors is an integer number (9578037).

Almost surely, 2^54731620 is an apocalyptic number.

It is an amenable number.

54731620 is an abundant number, since it is smaller than the sum of its proper divisors (60204824).

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

54731620 is a wasteful number, since it uses less digits than its factorization.

54731620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736590 (or 2736588 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 54731620 is about 7398.0821839177. The cubic root of 54731620 is about 379.6756697077.

The spelling of 54731620 in words is "fifty-four million, seven hundred thirty-one thousand, six hundred twenty".