25131403430422 has 4 divisors (see below), whose sum is σ = 37697105145636. Its totient is φ = 12565701715210.

The previous prime is 25131403430407. The next prime is 25131403430423. The reversal of 25131403430422 is 22403430413152.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25131403430423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6282850857604 + ... + 6282850857607.

It is an arithmetic number, because the mean of its divisors is an integer number (9424276286409).

Almost surely, 2^{25131403430422} is an apocalyptic number.

25131403430422 is a deficient number, since it is larger than the sum of its proper divisors (12565701715214).

25131403430422 is a wasteful number, since it uses less digits than its factorization.

25131403430422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12565701715213.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 25131403430422 its reverse (22403430413152), we get a palindrome (47534833843574).

The spelling of 25131403430422 in words is "twenty-five trillion, one hundred thirty-one billion, four hundred three million, four hundred thirty thousand, four hundred twenty-two".