53021513212 has 6 divisors (see below), whose sum is σ = 92787648128. Its totient is φ = 26510756604.

The previous prime is 53021513143. The next prime is 53021513213. The reversal of 53021513212 is 21231512035.

It is a super-2 number, since 2×53021513212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53021513213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6627689148 + ... + 6627689155.

Almost surely, 2^53021513212 is an apocalyptic number.

It is an amenable number.

53021513212 is a deficient number, since it is larger than the sum of its proper divisors (39766134916).

53021513212 is a wasteful number, since it uses less digits than its factorization.

53021513212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13255378307 (or 13255378305 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 53021513212 in words is "fifty-three billion, twenty-one million, five hundred thirteen thousand, two hundred twelve".