25125749 has 8 divisors (see below), whose sum is σ = 27446592. Its totient is φ = 22811040.

The previous prime is 25125739. The next prime is 25125757. The reversal of 25125749 is 94752152.

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 25125749 - 2¹² = 25121653 is a prime.

It is a super-2 number, since 2×25125749² = 1262606525622002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25125719) 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, 13457 + ... + 15209.

It is an arithmetic number, because the mean of its divisors is an integer number (3430824).

Almost surely, 2^25125749 is an apocalyptic number.

It is an amenable number.

25125749 is a deficient number, since it is larger than the sum of its proper divisors (2320843).

25125749 is a wasteful number, since it uses less digits than its factorization.

25125749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067.

The product of its digits is 25200, while the sum is 35.

The square root of 25125749 is about 5012.5591268333. The cubic root of 25125749 is about 292.8912105293.

The spelling of 25125749 in words is "twenty-five million, one hundred twenty-five thousand, seven hundred forty-nine".