431520051 has 4 divisors (see below), whose sum is σ = 575360072. Its totient is φ = 287680032.

The previous prime is 431520017. The next prime is 431520053. The reversal of 431520051 is 150025134.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 431520051 - 2¹⁰ = 431519027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431520053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71920006 + ... + 71920011.

It is an arithmetic number, because the mean of its divisors is an integer number (143840018).

Almost surely, 2^431520051 is an apocalyptic number.

431520051 is a deficient number, since it is larger than the sum of its proper divisors (143840021).

431520051 is a wasteful number, since it uses less digits than its factorization.

431520051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143840020.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 431520051 is about 20773.0607037095. The cubic root of 431520051 is about 755.6725734903.

Adding to 431520051 its reverse (150025134), we get a palindrome (581545185).

The spelling of 431520051 in words is "four hundred thirty-one million, five hundred twenty thousand, fifty-one".