25001138 has 8 divisors (see below), whose sum is σ = 39132288. Its totient is φ = 11957044.

The previous prime is 25001111. The next prime is 25001149. The reversal of 25001138 is 83110052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271706 + ... + 271797.

It is an arithmetic number, because the mean of its divisors is an integer number (4891536).

Almost surely, 2^25001138 is an apocalyptic number.

25001138 is a deficient number, since it is larger than the sum of its proper divisors (14131150).

25001138 is a wasteful number, since it uses less digits than its factorization.

25001138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543528.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 25001138 is about 5000.1137987050. The cubic root of 25001138 is about 292.4062104636.

The spelling of 25001138 in words is "twenty-five million, one thousand, one hundred thirty-eight".