53212716 has 36 divisors (see below), whose sum is σ = 134867824. Its totient is φ = 17690400.

The previous prime is 53212667. The next prime is 53212721. The reversal of 53212716 is 61721235.

It is a happy number.

53212716 is a `hidden beast` number, since 532 + 127 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 53212716.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13401 + ... + 16911.

Almost surely, 2^53212716 is an apocalyptic number.

It is an amenable number.

53212716 is an abundant number, since it is smaller than the sum of its proper divisors (81655108).

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

53212716 is a wasteful number, since it uses less digits than its factorization.

53212716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942 (or 3937 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 53212716 is about 7294.7046547479. The cubic root of 53212716 is about 376.1304342251.

The spelling of 53212716 in words is "fifty-three million, two hundred twelve thousand, seven hundred sixteen".