52042780523 has 4 divisors (see below), whose sum is σ = 52046460480. Its totient is φ = 52039100568.

The previous prime is 52042780519. The next prime is 52042780529. The reversal of 52042780523 is 32508724025.

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 52042780523 - 2² = 52042780519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52042780529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1818683 + ... + 1847076.

It is an arithmetic number, because the mean of its divisors is an integer number (13011615120).

Almost surely, 2^52042780523 is an apocalyptic number.

52042780523 is a deficient number, since it is larger than the sum of its proper divisors (3679957).

52042780523 is a wasteful number, since it uses less digits than its factorization.

52042780523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679956.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 52042780523 in words is "fifty-two billion, forty-two million, seven hundred eighty thousand, five hundred twenty-three".