54642740 has 12 divisors (see below), whose sum is σ = 114749796. Its totient is φ = 21857088.

The previous prime is 54642737. The next prime is 54642773. The reversal of 54642740 is 4724645.

It can be written as a sum of positive squares in 2 ways, for example, as 14167696 + 40475044 = 3764^2 + 6362^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 54642697 and 54642706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1366049 + ... + 1366088.

It is an arithmetic number, because the mean of its divisors is an integer number (9562483).

Almost surely, 2^54642740 is an apocalyptic number.

It is an amenable number.

54642740 is an abundant number, since it is smaller than the sum of its proper divisors (60107056).

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

54642740 is a wasteful number, since it uses less digits than its factorization.

54642740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732146 (or 2732144 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 54642740 is about 7392.0727810270. The cubic root of 54642740 is about 379.4700368592.

The spelling of 54642740 in words is "fifty-four million, six hundred forty-two thousand, seven hundred forty".