251023412 has 12 divisors (see below), whose sum is σ = 439665156. Its totient is φ = 125404800.

The previous prime is 251023397. The next prime is 251023433. The reversal of 251023412 is 214320152.

251023412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 24641296 + 226382116 = 4964^2 + 15046^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21323 + ... + 30930.

It is an arithmetic number, because the mean of its divisors is an integer number (36638763).

Almost surely, 2^251023412 is an apocalyptic number.

It is an amenable number.

251023412 is a deficient number, since it is larger than the sum of its proper divisors (188641744).

251023412 is a wasteful number, since it uses less digits than its factorization.

251023412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53458 (or 53456 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 251023412 is about 15843.7183766943. The cubic root of 251023412 is about 630.8189668389.

Adding to 251023412 its reverse (214320152), we get a palindrome (465343564).

The spelling of 251023412 in words is "two hundred fifty-one million, twenty-three thousand, four hundred twelve".