53086572 has 108 divisors (see below), whose sum is σ = 168667408. Its totient is φ = 13780800.

The previous prime is 53086543. The next prime is 53086573. The reversal of 53086572 is 27568035.

53086572 is a `hidden beast` number, since 5 + 3 + 0 + 86 + 572 = 666.

It is a super-2 number, since 2×53086572² = 5636368253422368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (53086573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29622 + ... + 31362.

Almost surely, 2^53086572 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 53086572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84333704).

53086572 is an abundant number, since it is smaller than the sum of its proper divisors (115580836).

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

53086572 is a wasteful number, since it uses less digits than its factorization.

53086572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780 (or 1764 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 53086572 is about 7286.0532526190. The cubic root of 53086572 is about 375.8329856564.

The spelling of 53086572 in words is "fifty-three million, eighty-six thousand, five hundred seventy-two".