25532949 has 16 divisors (see below), whose sum is σ = 37183104. Its totient is φ = 15489600.

The previous prime is 25532939. The next prime is 25532951. The reversal of 25532949 is 94923552.

It is not a de Polignac number, because 25532949 - 2⁷ = 25532821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25532939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842 + ... + 7379.

It is an arithmetic number, because the mean of its divisors is an integer number (2323944).

Almost surely, 2^25532949 is an apocalyptic number.

It is an amenable number.

25532949 is a deficient number, since it is larger than the sum of its proper divisors (11650155).

25532949 is a wasteful number, since it uses less digits than its factorization.

25532949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9308.

The product of its digits is 97200, while the sum is 39.

The square root of 25532949 is about 5053.0138531376. The cubic root of 25532949 is about 294.4649845039.

The spelling of 25532949 in words is "twenty-five million, five hundred thirty-two thousand, nine hundred forty-nine".