25150195925 has 24 divisors (see below), whose sum is σ = 32041943976. Its totient is φ = 19568528640.

The previous prime is 25150195891. The next prime is 25150195949. The reversal of 25150195925 is 52959105152.

It can be written as a sum of positive squares in 12 ways, for example, as 1505905636 + 23644290289 = 38806^2 + 153767^2 .

It is not a de Polignac number, because 25150195925 - 2²⁶ = 25083087061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3582719 + ... + 3589731.

It is an arithmetic number, because the mean of its divisors is an integer number (1335080999).

Almost surely, 2^25150195925 is an apocalyptic number.

25150195925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25150195925 is a deficient number, since it is larger than the sum of its proper divisors (6891748051).

25150195925 is a wasteful number, since it uses less digits than its factorization.

25150195925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10937 (or 10932 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 44.

The spelling of 25150195925 in words is "twenty-five billion, one hundred fifty million, one hundred ninety-five thousand, nine hundred twenty-five".