25151261 has 8 divisors (see below), whose sum is σ = 26217984. Its totient is φ = 24100560.

The previous prime is 25151257. The next prime is 25151263. The reversal of 25151261 is 16215152.

It is a happy number.

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 25151261 - 2² = 25151257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25151263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746 + ... + 7131.

It is an arithmetic number, because the mean of its divisors is an integer number (3277248).

Almost surely, 2^25151261 is an apocalyptic number.

It is an amenable number.

25151261 is a deficient number, since it is larger than the sum of its proper divisors (1066723).

25151261 is a wasteful number, since it uses less digits than its factorization.

25151261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8011.

The product of its digits is 600, while the sum is 23.

The square root of 25151261 is about 5015.1032890659. The cubic root of 25151261 is about 292.9903082445.

The spelling of 25151261 in words is "twenty-five million, one hundred fifty-one thousand, two hundred sixty-one".