25502803025 has 12 divisors (see below), whose sum is σ = 36141115392. Its totient is φ = 17487636240.

The previous prime is 25502803019. The next prime is 25502803031. The reversal of 25502803025 is 52030820552.

It is an interprime number because it is at equal distance from previous prime (25502803019) and next prime (25502803031).

It is not a de Polignac number, because 25502803025 - 2⁴ = 25502803009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25502802982 and 25502803000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72864977 + ... + 72865326.

It is an arithmetic number, because the mean of its divisors is an integer number (3011759616).

Almost surely, 2^25502803025 is an apocalyptic number.

25502803025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25502803025 is a deficient number, since it is larger than the sum of its proper divisors (10638312367).

25502803025 is a wasteful number, since it uses less digits than its factorization.

25502803025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145730320 (or 145730315 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 25502803025 in words is "twenty-five billion, five hundred two million, eight hundred three thousand, twenty-five".