25041480025 has 9 divisors (see below), whose sum is σ = 31052416381. Its totient is φ = 20032551040.

The previous prime is 25041480007. The next prime is 25041480031. The reversal of 25041480025 is 52008414052.

The square root of 25041480025 is 158245.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1936264009 + 23105216016 = 44003^2 + 152004^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25041480025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 775401 + ... + 807049.

Almost surely, 2^25041480025 is an apocalyptic number.

25041480025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25041480025 is the 158245-th square number.

25041480025 is the 79123-rd centered octagonal number.

It is an amenable number.

25041480025 is a deficient number, since it is larger than the sum of its proper divisors (6010936356).

25041480025 is an frugal number, since it uses more digits than its factorization.

25041480025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63308 (or 31654 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 25041480025 its reverse (52008414052), we get a palindrome (77049894077).

The spelling of 25041480025 in words is "twenty-five billion, forty-one million, four hundred eighty thousand, twenty-five".