252510551 has 4 divisors (see below), whose sum is σ = 265800600. Its totient is φ = 239220504.

The previous prime is 252510547. The next prime is 252510553. The reversal of 252510551 is 155015252.

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 252510551 - 2² = 252510547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252510551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252510553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6644996 + ... + 6645033.

It is an arithmetic number, because the mean of its divisors is an integer number (66450150).

Almost surely, 2^252510551 is an apocalyptic number.

252510551 is a deficient number, since it is larger than the sum of its proper divisors (13290049).

252510551 is a wasteful number, since it uses less digits than its factorization.

252510551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13290048.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 252510551 is about 15890.5805746675. The cubic root of 252510551 is about 632.0622359998.

The spelling of 252510551 in words is "two hundred fifty-two million, five hundred ten thousand, five hundred fifty-one".