53140021506 has 96 divisors (see below), whose sum is σ = 143222421888. Its totient is φ = 13989957120.

The previous prime is 53140021469. The next prime is 53140021531. The reversal of 53140021506 is 60512004135.

It is a self number, because there is not a number n which added to its sum of digits gives 53140021506.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 563446 + ... + 650961.

It is an arithmetic number, because the mean of its divisors is an integer number (1491900228).

Almost surely, 2^53140021506 is an apocalyptic number.

53140021506 is an abundant number, since it is smaller than the sum of its proper divisors (90082400382).

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

53140021506 is a wasteful number, since it uses less digits than its factorization.

53140021506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214456 (or 1214453 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 53140021506 in words is "fifty-three billion, one hundred forty million, twenty-one thousand, five hundred six".