512400251 has 16 divisors (see below), whose sum is σ = 577801728. Its totient is φ = 450376800.

The previous prime is 512400199. The next prime is 512400253. The reversal of 512400251 is 152004215.

It is a cyclic number.

It is not a de Polignac number, because 512400251 - 2¹⁴ = 512383867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512400253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36941 + ... + 48881.

It is an arithmetic number, because the mean of its divisors is an integer number (36112608).

Almost surely, 2^512400251 is an apocalyptic number.

512400251 is a deficient number, since it is larger than the sum of its proper divisors (65401477).

512400251 is a wasteful number, since it uses less digits than its factorization.

512400251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12082.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 512400251 is about 22636.2596512763. The cubic root of 512400251 is about 800.2084097645.

Adding to 512400251 its reverse (152004215), we get a palindrome (664404466).

The spelling of 512400251 in words is "five hundred twelve million, four hundred thousand, two hundred fifty-one".