53139732246 has 24 divisors (see below), whose sum is σ = 115156448784. Its totient is φ = 17710111440.

The previous prime is 53139732229. The next prime is 53139732253. The reversal of 53139732246 is 64223793135.

53139732246 is a `hidden beast` number, since 5 + 31 + 397 + 3 + 224 + 6 = 666.

It is a super-2 number, since 2×53139732246² (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, 155290 + ... + 361101.

It is an arithmetic number, because the mean of its divisors is an integer number (4798185366).

Almost surely, 2^53139732246 is an apocalyptic number.

53139732246 is an abundant number, since it is smaller than the sum of its proper divisors (62016716538).

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

53139732246 is a wasteful number, since it uses less digits than its factorization.

53139732246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522116 (or 522113 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The spelling of 53139732246 in words is "fifty-three billion, one hundred thirty-nine million, seven hundred thirty-two thousand, two hundred forty-six".