25220000431 has 8 divisors (see below), whose sum is σ = 26041042944. Its totient is φ = 24399426360.

The previous prime is 25220000389. The next prime is 25220000453. The reversal of 25220000431 is 13400002252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25220000431 - 2²¹ = 25217903279 is a prime.

It is a super-2 number, since 2×25220000431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25220000399 and 25220000408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25220000731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5995 + ... + 224668.

It is an arithmetic number, because the mean of its divisors is an integer number (3255130368).

Almost surely, 2^25220000431 is an apocalyptic number.

25220000431 is a deficient number, since it is larger than the sum of its proper divisors (821042513).

25220000431 is a wasteful number, since it uses less digits than its factorization.

25220000431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234221.

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 25220000431 its reverse (13400002252), we get a palindrome (38620002683).

The spelling of 25220000431 in words is "twenty-five billion, two hundred twenty million, four hundred thirty-one", and thus it is an aban number.