53019015418 has 4 divisors (see below), whose sum is σ = 79528523130. Its totient is φ = 26509507708.

The previous prime is 53019015391. The next prime is 53019015433. The reversal of 53019015418 is 81451091035.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42114017089 + 10904998329 = 205217^2 + 104427^2 .

It is a super-2 number, since 2×53019015418² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13254753853 + ... + 13254753856.

Almost surely, 2^53019015418 is an apocalyptic number.

53019015418 is a deficient number, since it is larger than the sum of its proper divisors (26509507712).

53019015418 is a wasteful number, since it uses less digits than its factorization.

53019015418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26509507711.

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 53019015418 in words is "fifty-three billion, nineteen million, fifteen thousand, four hundred eighteen".