25001361 has 48 divisors (see below), whose sum is σ = 46126080. Its totient is φ = 12670560.

The previous prime is 25001351. The next prime is 25001369. The reversal of 25001361 is 16310052.

It is not a de Polignac number, because 25001361 - 2⁵ = 25001329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25001369) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29380 + ... + 30218.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 2^25001361 is an apocalyptic number.

25001361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25001361 is a deficient number, since it is larger than the sum of its proper divisors (21124719).

25001361 is a wasteful number, since it uses less digits than its factorization.

25001361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 25001361 is about 5000.1360981477. The cubic root of 25001361 is about 292.4070798425.

The spelling of 25001361 in words is "twenty-five million, one thousand, three hundred sixty-one".