25139253 has 8 divisors (see below), whose sum is σ = 34976448. Its totient is φ = 16030784.

The previous prime is 25139249. The next prime is 25139263. The reversal of 25139253 is 35293152.

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 25139253 - 2² = 25139249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25139253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25139263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182100 + ... + 182237.

It is an arithmetic number, because the mean of its divisors is an integer number (4372056).

Almost surely, 2^25139253 is an apocalyptic number.

25139253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25139253 is a deficient number, since it is larger than the sum of its proper divisors (9837195).

25139253 is a wasteful number, since it uses less digits than its factorization.

25139253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364363.

The product of its digits is 8100, while the sum is 30.

The square root of 25139253 is about 5013.9059624209. The cubic root of 25139253 is about 292.9436732378.

The spelling of 25139253 in words is "twenty-five million, one hundred thirty-nine thousand, two hundred fifty-three".