53015544415 has 4 divisors (see below), whose sum is σ = 63618653304. Its totient is φ = 42412435528.

The previous prime is 53015544353. The next prime is 53015544493. The reversal of 53015544415 is 51444551035.

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

It is a cyclic number.

It is not a de Polignac number, because 53015544415 - 2⁷ = 53015544287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5301554437 + ... + 5301554446.

It is an arithmetic number, because the mean of its divisors is an integer number (15904663326).

Almost surely, 2^53015544415 is an apocalyptic number.

53015544415 is a deficient number, since it is larger than the sum of its proper divisors (10603108889).

53015544415 is a wasteful number, since it uses less digits than its factorization.

53015544415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10603108888.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 53015544415 in words is "fifty-three billion, fifteen million, five hundred forty-four thousand, four hundred fifteen".