53915991554 has 32 divisors (see below), whose sum is σ = 89317378560. Its totient is φ = 24310108800.

The previous prime is 53915991541. The next prime is 53915991559. The reversal of 53915991554 is 45519951935.

It is a self number, because there is not a number n which added to its sum of digits gives 53915991554.

It is not an unprimeable number, because it can be changed into a prime (53915991559) 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, 303299 + ... + 447014.

It is an arithmetic number, because the mean of its divisors is an integer number (2791168080).

Almost surely, 2^53915991554 is an apocalyptic number.

53915991554 is a deficient number, since it is larger than the sum of its proper divisors (35401387006).

53915991554 is a wasteful number, since it uses less digits than its factorization.

53915991554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750426.

The product of its digits is 5467500, while the sum is 56.

The spelling of 53915991554 in words is "fifty-three billion, nine hundred fifteen million, nine hundred ninety-one thousand, five hundred fifty-four".