252505051 has 4 divisors (see below), whose sum is σ = 252675000. Its totient is φ = 252335104.

The previous prime is 252505049. The next prime is 252505061. The reversal of 252505051 is 150505252.

It is a happy number.

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 252505051 - 2¹ = 252505049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252505031) 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, 82726 + ... + 85723.

It is an arithmetic number, because the mean of its divisors is an integer number (63168750).

Almost surely, 2^252505051 is an apocalyptic number.

252505051 is a deficient number, since it is larger than the sum of its proper divisors (169949).

252505051 is a wasteful number, since it uses less digits than its factorization.

252505051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169948.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 252505051 is about 15890.4075152275. The cubic root of 252505051 is about 632.0576469275.

The spelling of 252505051 in words is "two hundred fifty-two million, five hundred five thousand, fifty-one".