53155421215042 has 4 divisors (see below), whose sum is σ = 79733131822566. Its totient is φ = 26577710607520.

The previous prime is 53155421215019. The next prime is 53155421215069. The reversal of 53155421215042 is 24051212455135.

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., 38566695823681 + 14588725391361 = 6210209^2 + 3819519^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53155421214986 and 53155421215004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13288855303759 + ... + 13288855303762.

Almost surely, 2^{53155421215042} is an apocalyptic number.

53155421215042 is a deficient number, since it is larger than the sum of its proper divisors (26577710607524).

53155421215042 is a wasteful number, since it uses less digits than its factorization.

53155421215042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26577710607523.

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 53155421215042 in words is "fifty-three trillion, one hundred fifty-five billion, four hundred twenty-one million, two hundred fifteen thousand, forty-two".