512400501 has 12 divisors (see below), whose sum is σ = 748451340. Its totient is φ = 337761600.

The previous prime is 512400491. The next prime is 512400521. The reversal of 512400501 is 105004215.

It can be written as a sum of positive squares in 2 ways, for example, as 41293476 + 471107025 = 6426^2 + 21705^2 .

It is not a de Polignac number, because 512400501 - 2⁶ = 512400437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512400521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319050 + ... + 320651.

It is an arithmetic number, because the mean of its divisors is an integer number (62370945).

Almost surely, 2^512400501 is an apocalyptic number.

It is an amenable number.

512400501 is a deficient number, since it is larger than the sum of its proper divisors (236050839).

512400501 is a wasteful number, since it uses less digits than its factorization.

512400501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639796 (or 639793 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 512400501 is about 22636.2651733894. The cubic root of 512400501 is about 800.2085399050.

Adding to 512400501 its reverse (105004215), we get a palindrome (617404716).

The spelling of 512400501 in words is "five hundred twelve million, four hundred thousand, five hundred one".