250004440025 has 12 divisors (see below), whose sum is σ = 311861831232. Its totient is φ = 198805922640.

The previous prime is 250004439989. The next prime is 250004440031. The reversal of 250004440025 is 520044400052.

It is not a de Polignac number, because 250004440025 - 2¹⁸ = 250004177881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250004439976 and 250004440003.

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, 29936477 + ... + 29944826.

It is an arithmetic number, because the mean of its divisors is an integer number (25988485936).

Almost surely, 2^250004440025 is an apocalyptic number.

250004440025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250004440025 is a deficient number, since it is larger than the sum of its proper divisors (61857391207).

250004440025 is a wasteful number, since it uses less digits than its factorization.

250004440025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59881480 (or 59881475 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 250004440025 its reverse (520044400052), we get a palindrome (770048840077).

The spelling of 250004440025 in words is "two hundred fifty billion, four million, four hundred forty thousand, twenty-five".