24725990025 has 81 divisors (see below), whose sum is σ = 48730227637. Its totient is φ = 11975779200.

The previous prime is 24725989997. The next prime is 24725990071. The reversal of 24725990025 is 52009952742.

The square root of 24725990025 is 157245.

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 1239814521 + 23486175504 = 35211^2 + 153252^2 .

It is not a de Polignac number, because 24725990025 - 2¹⁵ = 24725957257 is a prime.

It is a super-2 number, since 2×24725990025² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 25944949 + ... + 25945901.

Almost surely, 2^24725990025 is an apocalyptic number.

24725990025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

24725990025 is the 157245-th square number.

24725990025 is the 78623-rd centered octagonal number.

It is an amenable number.

24725990025 is a deficient number, since it is larger than the sum of its proper divisors (24004237612).

24725990025 is an equidigital number, since it uses as much as digits as its factorization.

24725990025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 24725990025 in words is "twenty-four billion, seven hundred twenty-five million, nine hundred ninety thousand, twenty-five".