25098139 has 8 divisors (see below), whose sum is σ = 27481968. Its totient is φ = 22731360.

The previous prime is 25098131. The next prime is 25098149. The reversal of 25098139 is 93189052.

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

It is a cyclic number.

It is not a de Polignac number, because 25098139 - 2³ = 25098131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25098098 and 25098107.

It is not an unprimeable number, because it can be changed into a prime (25098131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 7165.

It is an arithmetic number, because the mean of its divisors is an integer number (3435246).

Almost surely, 2^25098139 is an apocalyptic number.

25098139 is a deficient number, since it is larger than the sum of its proper divisors (2383829).

25098139 is a wasteful number, since it uses less digits than its factorization.

25098139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8525.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 25098139 is about 5009.8042875945. The cubic root of 25098139 is about 292.7838878219.

It can be divided in two parts, 2509 and 8139, that added together give a cube (10648 = 22³).

The spelling of 25098139 in words is "twenty-five million, ninety-eight thousand, one hundred thirty-nine".