25350138 has 32 divisors (see below), whose sum is σ = 61456320. Its totient is φ = 7681680.

The previous prime is 25350103. The next prime is 25350139. The reversal of 25350138 is 83105352.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25350139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20745 + ... + 21932.

It is an arithmetic number, because the mean of its divisors is an integer number (1920510).

Almost surely, 2^25350138 is an apocalyptic number.

25350138 is an abundant number, since it is smaller than the sum of its proper divisors (36106182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25350138 is a wasteful number, since it uses less digits than its factorization.

25350138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42699 (or 42693 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 25350138 is about 5034.8920544536. The cubic root of 25350138 is about 293.7605296965.

The spelling of 25350138 in words is "twenty-five million, three hundred fifty thousand, one hundred thirty-eight".