53087418 has 24 divisors (see below), whose sum is σ = 116165556. Its totient is φ = 17520000.

The previous prime is 53087417. The next prime is 53087423. The reversal of 53087418 is 81478035.

53087418 is a `hidden beast` number, since 530 + 87 + 41 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51022449 + 2064969 = 7143^2 + 1437^2 .

It is not an unprimeable number, because it can be changed into a prime (53087417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12783 + ... + 16418.

Almost surely, 2^53087418 is an apocalyptic number.

53087418 is an abundant number, since it is smaller than the sum of its proper divisors (63078138).

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

53087418 is a wasteful number, since it uses less digits than its factorization.

53087418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29310 (or 29307 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 53087418 is about 7286.1113085102. Note that the first 3 decimals coincide. The cubic root of 53087418 is about 375.8349820998.

The spelling of 53087418 in words is "fifty-three million, eighty-seven thousand, four hundred eighteen".