25245354025 has 24 divisors (see below), whose sum is σ = 33365257344. Its totient is φ = 18882336000.

The previous prime is 25245354023. The next prime is 25245354031. The reversal of 25245354025 is 52045354252.

It is not a de Polignac number, because 25245354025 - 2¹ = 25245354023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25245354023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132517 + ... + 260866.

It is an arithmetic number, because the mean of its divisors is an integer number (1390219056).

Almost surely, 2^25245354025 is an apocalyptic number.

25245354025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25245354025 is a deficient number, since it is larger than the sum of its proper divisors (8119903319).

25245354025 is a wasteful number, since it uses less digits than its factorization.

25245354025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393561 (or 393556 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 25245354025 in words is "twenty-five billion, two hundred forty-five million, three hundred fifty-four thousand, twenty-five".