53015974649 has 16 divisors (see below), whose sum is σ = 59382759744. Its totient is φ = 46914705600.

The previous prime is 53015974643. The next prime is 53015974751. The reversal of 53015974649 is 94647951035.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53015974649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53015974649.

It is not an unprimeable number, because it can be changed into a prime (53015974643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52682 + ... + 329859.

It is an arithmetic number, because the mean of its divisors is an integer number (3711422484).

Almost surely, 2^53015974649 is an apocalyptic number.

It is an amenable number.

53015974649 is a deficient number, since it is larger than the sum of its proper divisors (6366785095).

53015974649 is a wasteful number, since it uses less digits than its factorization.

53015974649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382888.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 53015974649 in words is "fifty-three billion, fifteen million, nine hundred seventy-four thousand, six hundred forty-nine".