25025251142 has 16 divisors (see below), whose sum is σ = 37816699200. Its totient is φ = 12419726760.

The previous prime is 25025251129. The next prime is 25025251157. The reversal of 25025251142 is 24115252052.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 1685909 + ... + 1700687.

It is an arithmetic number, because the mean of its divisors is an integer number (2363543700).

Almost surely, 2^25025251142 is an apocalyptic number.

25025251142 is a deficient number, since it is larger than the sum of its proper divisors (12791448058).

25025251142 is a wasteful number, since it uses less digits than its factorization.

25025251142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21011.

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 25025251142 in words is "twenty-five billion, twenty-five million, two hundred fifty-one thousand, one hundred forty-two".