431542425 has 24 divisors (see below), whose sum is σ = 730890720. Its totient is φ = 224540800.

The previous prime is 431542411. The next prime is 431542429. The reversal of 431542425 is 524245134.

It is not a de Polignac number, because 431542425 - 2⁶ = 431542361 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 431542392 and 431542401.

It is not an unprimeable number, because it can be changed into a prime (431542429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67095 + ... + 73244.

It is an arithmetic number, because the mean of its divisors is an integer number (30453780).

Almost surely, 2^431542425 is an apocalyptic number.

It is an amenable number.

431542425 is a deficient number, since it is larger than the sum of its proper divisors (299348295).

431542425 is a wasteful number, since it uses less digits than its factorization.

431542425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140393 (or 140388 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 431542425 is about 20773.5992307544. The cubic root of 431542425 is about 755.6856336219.

Adding to 431542425 its reverse (524245134), we get a palindrome (955787559).

The spelling of 431542425 in words is "four hundred thirty-one million, five hundred forty-two thousand, four hundred twenty-five".