53395720 has 32 divisors (see below), whose sum is σ = 137304000. Its totient is φ = 18307008.

The previous prime is 53395711. The next prime is 53395729. The reversal of 53395720 is 2759335.

It is an interprime number because it is at equal distance from previous prime (53395711) and next prime (53395729).

It is a super-2 number, since 2×53395720² = 5702205828636800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53395729) 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, 95070 + ... + 95629.

It is an arithmetic number, because the mean of its divisors is an integer number (4290750).

Almost surely, 2^53395720 is an apocalyptic number.

It is an amenable number.

53395720 is an abundant number, since it is smaller than the sum of its proper divisors (83908280).

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

53395720 is a wasteful number, since it uses less digits than its factorization.

53395720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190717 (or 190713 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 53395720 is about 7307.2375081148. The cubic root of 53395720 is about 376.5611246140.

The spelling of 53395720 in words is "fifty-three million, three hundred ninety-five thousand, seven hundred twenty".