53056040 has 32 divisors (see below), whose sum is σ = 119999880. Its totient is φ = 21111552.

The previous prime is 53056019. The next prime is 53056043. The reversal of 53056040 is 4065035.

It can be written as a sum of positive squares in 4 ways, for example, as 50665924 + 2390116 = 7118^2 + 1546^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53055997 and 53056015.

It is not an unprimeable number, because it can be changed into a prime (53056043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4514 + ... + 11246.

Almost surely, 2^53056040 is an apocalyptic number.

It is an amenable number.

53056040 is an abundant number, since it is smaller than the sum of its proper divisors (66943840).

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

53056040 is a wasteful number, since it uses less digits than its factorization.

53056040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6941 (or 6937 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53056040 is about 7283.9577154182. The cubic root of 53056040 is about 375.7609201423.

The spelling of 53056040 in words is "fifty-three million, fifty-six thousand, forty".