431504053 has 4 divisors (see below), whose sum is σ = 437944480. Its totient is φ = 425063628.

The previous prime is 431504033. The next prime is 431504063. The reversal of 431504053 is 350405134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431504053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431504033) 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, 3220113 + ... + 3220246.

It is an arithmetic number, because the mean of its divisors is an integer number (109486120).

Almost surely, 2^431504053 is an apocalyptic number.

It is an amenable number.

431504053 is a deficient number, since it is larger than the sum of its proper divisors (6440427).

431504053 is an equidigital number, since it uses as much as digits as its factorization.

431504053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440426.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 431504053 is about 20772.6756341113. The cubic root of 431504053 is about 755.6632348750.

Adding to 431504053 its reverse (350405134), we get a palindrome (781909187).

The spelling of 431504053 in words is "four hundred thirty-one million, five hundred four thousand, fifty-three".