252840474550 has 24 divisors (see below), whose sum is σ = 471241135512. Its totient is φ = 100930200000.

The previous prime is 252840474541. The next prime is 252840474559. The reversal of 252840474550 is 55474048252.

It is an interprime number because it is at equal distance from previous prime (252840474541) and next prime (252840474559).

It is a self number, because there is not a number n which added to its sum of digits gives 252840474550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252840474559) 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, 5124951 + ... + 5174050.

It is an arithmetic number, because the mean of its divisors is an integer number (19635047313).

Almost surely, 2^252840474550 is an apocalyptic number.

252840474550 is a deficient number, since it is larger than the sum of its proper divisors (218400660962).

252840474550 is a wasteful number, since it uses less digits than its factorization.

252840474550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10299504 (or 10299499 counting only the distinct ones).

The product of its (nonzero) digits is 1792000, while the sum is 46.

The spelling of 252840474550 in words is "two hundred fifty-two billion, eight hundred forty million, four hundred seventy-four thousand, five hundred fifty".