252501085 has 8 divisors (see below), whose sum is σ = 320825016. Its totient is φ = 190118400.

The previous prime is 252501079. The next prime is 252501097. The reversal of 252501085 is 580105252.

It can be written as a sum of positive squares in 4 ways, for example, as 34082244 + 218418841 = 5838^2 + 14779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252501085 - 2³ = 252501077 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1485216 + ... + 1485385.

It is an arithmetic number, because the mean of its divisors is an integer number (40103127).

Almost surely, 2^252501085 is an apocalyptic number.

It is an amenable number.

252501085 is a deficient number, since it is larger than the sum of its proper divisors (68323931).

252501085 is a wasteful number, since it uses less digits than its factorization.

252501085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970623.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 252501085 is about 15890.2827224691. The cubic root of 252501085 is about 632.0543377478.

It can be divided in two parts, 25250 and 1085, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 252501085 in words is "two hundred fifty-two million, five hundred one thousand, eighty-five".