53215072 has 24 divisors (see below), whose sum is σ = 104982696. Its totient is φ = 26552832.

The previous prime is 53215069. The next prime is 53215079. The reversal of 53215072 is 27051235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53215079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17368 + ... + 20200.

It is an arithmetic number, because the mean of its divisors is an integer number (4374279).

Almost surely, 2^53215072 is an apocalyptic number.

It is an amenable number.

53215072 is a deficient number, since it is larger than the sum of its proper divisors (51767624).

53215072 is a wasteful number, since it uses less digits than its factorization.

53215072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430 (or 3422 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 53215072 is about 7294.8661399645. The cubic root of 53215072 is about 376.1359852180.

The spelling of 53215072 in words is "fifty-three million, two hundred fifteen thousand, seventy-two".