53357040 has 120 divisors (see below), whose sum is σ = 195509808. Its totient is φ = 12933120.

The previous prime is 53357039. The next prime is 53357069. The reversal of 53357040 is 4075335.

It is a happy number.

53357040 is a `hidden beast` number, since 53 + 3 + 570 + 40 = 666.

53357040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 53356995 and 53357013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4552 + ... + 11288.

Almost surely, 2^53357040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53357040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97754904).

53357040 is an abundant number, since it is smaller than the sum of its proper divisors (142152768).

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

53357040 is a wasteful number, since it uses less digits than its factorization.

53357040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6767 (or 6758 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 53357040 is about 7304.5903375891. The cubic root of 53357040 is about 376.4701753595.

The spelling of 53357040 in words is "fifty-three million, three hundred fifty-seven thousand, forty".