25297224542 has 16 divisors (see below), whose sum is σ = 38455197120. Its totient is φ = 12479440512.

The previous prime is 25297224541. The next prime is 25297224551. The reversal of 25297224542 is 24542279252.

25297224542 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×25297224542⁴ (a number of 43 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25297224493 and 25297224502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25297224541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71063 + ... + 235890.

It is an arithmetic number, because the mean of its divisors is an integer number (2403449820).

Almost surely, 2^25297224542 is an apocalyptic number.

25297224542 is a deficient number, since it is larger than the sum of its proper divisors (13157972578).

25297224542 is a wasteful number, since it uses less digits than its factorization.

25297224542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307507.

The product of its digits is 806400, while the sum is 44.

The spelling of 25297224542 in words is "twenty-five billion, two hundred ninety-seven million, two hundred twenty-four thousand, five hundred forty-two".