25512222023430 has 32 divisors (see below), whose sum is σ = 62267118163200. Its totient is φ = 6687949727712.

The previous prime is 25512222023429. The next prime is 25512222023443. The reversal of 25512222023430 is 3432022221552.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25512222023391 and 25512222023400.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7206840610 + ... + 7206844149.

It is an arithmetic number, because the mean of its divisors is an integer number (1945847442600).

Almost surely, 2^{25512222023430} is an apocalyptic number.

25512222023430 is an abundant number, since it is smaller than the sum of its proper divisors (36754896139770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25512222023430 is a wasteful number, since it uses less digits than its factorization.

25512222023430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14413684828.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 25512222023430 its reverse (3432022221552), we get a palindrome (28944244244982).

The spelling of 25512222023430 in words is "twenty-five trillion, five hundred twelve billion, two hundred twenty-two million, twenty-three thousand, four hundred thirty".