25416607442 has 16 divisors (see below), whose sum is σ = 39273379200. Its totient is φ = 12329448432.

The previous prime is 25416607429. The next prime is 25416607481. The reversal of 25416607442 is 24470661452.

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 25416607442.

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, 978938 + ... + 1004565.

It is an arithmetic number, because the mean of its divisors is an integer number (2454586200).

Almost surely, 2^25416607442 is an apocalyptic number.

25416607442 is a deficient number, since it is larger than the sum of its proper divisors (13856771758).

25416607442 is a wasteful number, since it uses less digits than its factorization.

25416607442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983697.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 25416607442 in words is "twenty-five billion, four hundred sixteen million, six hundred seven thousand, four hundred forty-two".