53904740 has 12 divisors (see below), whose sum is σ = 113199996. Its totient is φ = 21561888.

The previous prime is 53904731. The next prime is 53904779. The reversal of 53904740 is 4740935.

It can be written as a sum of positive squares in 2 ways, for example, as 38663524 + 15241216 = 6218^2 + 3904^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53904697 and 53904706.

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, 1347599 + ... + 1347638.

It is an arithmetic number, because the mean of its divisors is an integer number (9433333).

Almost surely, 2^53904740 is an apocalyptic number.

It is an amenable number.

53904740 is an abundant number, since it is smaller than the sum of its proper divisors (59295256).

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

53904740 is a wasteful number, since it uses less digits than its factorization.

53904740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695246 (or 2695244 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 53904740 is about 7341.9847452852. The cubic root of 53904740 is about 377.7539247403.

The spelling of 53904740 in words is "fifty-three million, nine hundred four thousand, seven hundred forty".