25098901242 has 16 divisors (see below), whose sum is σ = 50487965280. Its totient is φ = 8317939952.

The previous prime is 25098901229. The next prime is 25098901253. The reversal of 25098901242 is 24210989052.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25098901194 and 25098901203.

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, 12088992 + ... + 12091067.

It is an arithmetic number, because the mean of its divisors is an integer number (3155497830).

Almost surely, 2^25098901242 is an apocalyptic number.

25098901242 is an abundant number, since it is smaller than the sum of its proper divisors (25389064038).

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

25098901242 is a wasteful number, since it uses less digits than its factorization.

25098901242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24180237.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 25098901242 in words is "twenty-five billion, ninety-eight million, nine hundred one thousand, two hundred forty-two".