25454235031 has 4 divisors (see below), whose sum is σ = 26951542992. Its totient is φ = 23956927072.

The previous prime is 25454234999. The next prime is 25454235089. The reversal of 25454235031 is 13053245452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25454235031 - 2⁵ = 25454234999 is a prime.

It is a super-2 number, since 2×25454235031² (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 (25454235091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748653955 + ... + 748653988.

It is an arithmetic number, because the mean of its divisors is an integer number (6737885748).

Almost surely, 2^25454235031 is an apocalyptic number.

25454235031 is a deficient number, since it is larger than the sum of its proper divisors (1497307961).

25454235031 is a wasteful number, since it uses less digits than its factorization.

25454235031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497307960.

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 25454235031 in words is "twenty-five billion, four hundred fifty-four million, two hundred thirty-five thousand, thirty-one".