25042542031 has 8 divisors (see below), whose sum is σ = 26970429024. Its totient is φ = 23114874720.

The previous prime is 25042542011. The next prime is 25042542073. The reversal of 25042542031 is 13024524052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25042542031 - 2¹⁵ = 25042509263 is a prime.

It is a super-2 number, since 2×25042542031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25042542011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240885 + ... + 328801.

It is an arithmetic number, because the mean of its divisors is an integer number (3371303628).

Almost surely, 2^25042542031 is an apocalyptic number.

25042542031 is a deficient number, since it is larger than the sum of its proper divisors (1927886993).

25042542031 is a wasteful number, since it uses less digits than its factorization.

25042542031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109841.

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 25042542031 in words is "twenty-five billion, forty-two million, five hundred forty-two thousand, thirty-one".