53730738 has 24 divisors (see below), whose sum is σ = 117164268. Its totient is φ = 17795232.

The previous prime is 53730713. The next prime is 53730749. The reversal of 53730738 is 83703735.

It can be written as a sum of positive squares in 2 ways, for example, as 41641209 + 12089529 = 6453^2 + 3477^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6681 + ... + 12332.

Almost surely, 2^53730738 is an apocalyptic number.

53730738 is an abundant number, since it is smaller than the sum of its proper divisors (63433530).

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

53730738 is a wasteful number, since it uses less digits than its factorization.

53730738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19178 (or 19175 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 53730738 is about 7330.1253740983. The cubic root of 53730738 is about 377.3470292309.

The spelling of 53730738 in words is "fifty-three million, seven hundred thirty thousand, seven hundred thirty-eight".