25130175625 has 45 divisors (see below), whose sum is σ = 33448215801. Its totient is φ = 18870816000.

The previous prime is 25130175619. The next prime is 25130175667. The reversal of 25130175625 is 52657103152.

The square root of 25130175625 is 158525.

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

It can be written as a sum of positive squares in 22 ways, for example, as 25053508089 + 76667536 = 158283^2 + 8756^2 .

It is not a de Polignac number, because 25130175625 - 2²³ = 25121787017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 67372939 + ... + 67373311.

Almost surely, 2^25130175625 is an apocalyptic number.

25130175625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25130175625 is the 158525-th square number.

25130175625 is the 79263-rd centered octagonal number.

It is an amenable number.

25130175625 is a deficient number, since it is larger than the sum of its proper divisors (8318040176).

25130175625 is an frugal number, since it uses more digits than its factorization.

25130175625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

Adding to 25130175625 its reverse (52657103152), we get a palindrome (77787278777).

The spelling of 25130175625 in words is "twenty-five billion, one hundred thirty million, one hundred seventy-five thousand, six hundred twenty-five".