25005550325 has 24 divisors (see below), whose sum is σ = 37520937792. Its totient is φ = 16138033920.

The previous prime is 25005550313. The next prime is 25005550331. The reversal of 25005550325 is 52305550052.

It is not a de Polignac number, because 25005550325 - 2¹⁴ = 25005533941 is a prime.

It is a super-2 number, since 2×25005550325² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25005550291 and 25005550300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4199639 + ... + 4205588.

It is an arithmetic number, because the mean of its divisors is an integer number (1563372408).

Almost surely, 2^25005550325 is an apocalyptic number.

25005550325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25005550325 is a deficient number, since it is larger than the sum of its proper divisors (12515387467).

25005550325 is a wasteful number, since it uses less digits than its factorization.

25005550325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8405261 (or 8405256 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 32.

The spelling of 25005550325 in words is "twenty-five billion, five million, five hundred fifty thousand, three hundred twenty-five".