53587994499 has 20 divisors (see below), whose sum is σ = 86208988096. Its totient is φ = 32977226736.

The previous prime is 53587994489. The next prime is 53587994501. The reversal of 53587994499 is 99449978535.

53587994499 is a `hidden beast` number, since 53 + 5 + 87 + 9 + 9 + 4 + 499 = 666.

It is not a de Polignac number, because 53587994499 - 2¹⁶ = 53587928963 is a prime.

It is a super-2 number, since 2×53587994499² (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 (53587994489) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25444339 + ... + 25446444.

Almost surely, 2^53587994499 is an apocalyptic number.

53587994499 is a deficient number, since it is larger than the sum of its proper divisors (32620993597).

53587994499 is a wasteful number, since it uses less digits than its factorization.

53587994499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50890808 (or 50890799 counting only the distinct ones).

The product of its digits is 440899200, while the sum is 72.

The spelling of 53587994499 in words is "fifty-three billion, five hundred eighty-seven million, nine hundred ninety-four thousand, four hundred ninety-nine".