25321995 has 12 divisors (see below), whose sum is σ = 43891536. Its totient is φ = 13505040.

The previous prime is 25321987. The next prime is 25321997. The reversal of 25321995 is 59912352.

It is a happy number.

It is not a de Polignac number, because 25321995 - 2³ = 25321987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25321997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281311 + ... + 281400.

It is an arithmetic number, because the mean of its divisors is an integer number (3657628).

Almost surely, 2^25321995 is an apocalyptic number.

25321995 is a deficient number, since it is larger than the sum of its proper divisors (18569541).

25321995 is a wasteful number, since it uses less digits than its factorization.

25321995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562722 (or 562719 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 25321995 is about 5032.0964815870. The cubic root of 25321995 is about 293.6517812569.

The spelling of 25321995 in words is "twenty-five million, three hundred twenty-one thousand, nine hundred ninety-five".