251460052 has 12 divisors (see below), whose sum is σ = 450788436. Its totient is φ = 122663360.

The previous prime is 251460049. The next prime is 251460071. The reversal of 251460052 is 250064152.

It can be written as a sum of positive squares in 2 ways, for example, as 16941456 + 234518596 = 4116^2 + 15314^2 .

It is a junction number, because it is equal to n+sod(n) for n = 251459999 and 251460026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766483 + ... + 766810.

It is an arithmetic number, because the mean of its divisors is an integer number (37565703).

Almost surely, 2^251460052 is an apocalyptic number.

It is an amenable number.

251460052 is a deficient number, since it is larger than the sum of its proper divisors (199328384).

251460052 is a wasteful number, since it uses less digits than its factorization.

251460052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533338 (or 1533336 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 251460052 is about 15857.4919832866. The cubic root of 251460052 is about 631.1845120835.

The spelling of 251460052 in words is "two hundred fifty-one million, four hundred sixty thousand, fifty-two".