25101025 has 12 divisors (see below), whose sum is σ = 31436604. Its totient is φ = 19880000.

The previous prime is 25101007. The next prime is 25101031. The reversal of 25101025 is 52010152.

It can be written as a sum of positive squares in 6 ways, for example, as 1354896 + 23746129 = 1164^2 + 4873^2 .

It is not a de Polignac number, because 25101025 - 2⁹ = 25100513 is a prime.

It is a super-2 number, since 2×25101025² = 1260122912101250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2446 + ... + 7495.

It is an arithmetic number, because the mean of its divisors is an integer number (2619717).

Almost surely, 2^25101025 is an apocalyptic number.

25101025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25101025 is a deficient number, since it is larger than the sum of its proper divisors (6335579).

25101025 is a wasteful number, since it uses less digits than its factorization.

25101025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052 (or 10047 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 25101025 is about 5010.0923145188. The cubic root of 25101025 is about 292.7951096621.

Adding to 25101025 its reverse (52010152), we get a palindrome (77111177).

The spelling of 25101025 in words is "twenty-five million, one hundred one thousand, twenty-five".