53140021505 has 8 divisors (see below), whose sum is σ = 64363989312. Its totient is φ = 42114708208.

The previous prime is 53140021469. The next prime is 53140021531. The reversal of 53140021505 is 50512004135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53140021505 - 2³⁴ = 35960152321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49663037 + ... + 49664106.

It is an arithmetic number, because the mean of its divisors is an integer number (8045498664).

Almost surely, 2^53140021505 is an apocalyptic number.

It is an amenable number.

53140021505 is a deficient number, since it is larger than the sum of its proper divisors (11223967807).

53140021505 is a wasteful number, since it uses less digits than its factorization.

53140021505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99327255.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 53140021505 in words is "fifty-three billion, one hundred forty million, twenty-one thousand, five hundred five".