252135405356 has 24 divisors (see below), whose sum is σ = 442012735920. Its totient is φ = 125846134272.

The previous prime is 252135405343. The next prime is 252135405383. The reversal of 252135405356 is 653504531252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23495000 + ... + 23505728.

It is an arithmetic number, because the mean of its divisors is an integer number (18417197330).

Almost surely, 2^252135405356 is an apocalyptic number.

It is an amenable number.

252135405356 is a deficient number, since it is larger than the sum of its proper divisors (189877330564).

252135405356 is a wasteful number, since it uses less digits than its factorization.

252135405356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20513 (or 20511 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 252135405356 in words is "two hundred fifty-two billion, one hundred thirty-five million, four hundred five thousand, three hundred fifty-six".