25345353542 has 16 divisors (see below), whose sum is σ = 38084709600. Its totient is φ = 12650468160.

The previous prime is 25345353469. The next prime is 25345353557. The reversal of 25345353542 is 24535354352.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25345353542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5160584 + ... + 5165492.

It is an arithmetic number, because the mean of its divisors is an integer number (2380294350).

Almost surely, 2^25345353542 is an apocalyptic number.

25345353542 is a deficient number, since it is larger than the sum of its proper divisors (12739356058).

25345353542 is a wasteful number, since it uses less digits than its factorization.

25345353542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8911.

The product of its digits is 1080000, while the sum is 41.

The spelling of 25345353542 in words is "twenty-five billion, three hundred forty-five million, three hundred fifty-three thousand, five hundred forty-two".