53149263507 has 36 divisors (see below), whose sum is σ = 79778625160. Its totient is φ = 35406725184.

The previous prime is 53149263499. The next prime is 53149263533. The reversal of 53149263507 is 70536294135.

53149263507 is a `hidden beast` number, since 5 + 3 + 1 + 4 + 9 + 2 + 635 + 0 + 7 = 666.

It is not a de Polignac number, because 53149263507 - 2³ = 53149263499 is a prime.

It is a super-2 number, since 2×53149263507² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53149263547) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13664619 + ... + 13668507.

Almost surely, 2^53149263507 is an apocalyptic number.

53149263507 is a deficient number, since it is larger than the sum of its proper divisors (26629361653).

53149263507 is an frugal number, since it uses more digits than its factorization.

53149263507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5996 (or 5975 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 53149263507 in words is "fifty-three billion, one hundred forty-nine million, two hundred sixty-three thousand, five hundred seven".