53015657212 has 36 divisors (see below), whose sum is σ = 113604987720. Its totient is φ = 21525152544.

The previous prime is 53015657209. The next prime is 53015657239. The reversal of 53015657212 is 21275651035.

It is a super-2 number, since 2×53015657212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 7114383 + ... + 7121830.

Almost surely, 2^53015657212 is an apocalyptic number.

It is an amenable number.

53015657212 is an abundant number, since it is smaller than the sum of its proper divisors (60589330508).

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

53015657212 is a wasteful number, since it uses less digits than its factorization.

53015657212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14236250 (or 14236241 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 53015657212 in words is "fifty-three billion, fifteen million, six hundred fifty-seven thousand, two hundred twelve".