25629961 has 8 divisors (see below), whose sum is σ = 30006144. Its totient is φ = 21432480.

The previous prime is 25629907. The next prime is 25629973. The reversal of 25629961 is 16992652.

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 25629961 - 2¹¹ = 25627913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25621961) 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, 44365 + ... + 44938.

It is an arithmetic number, because the mean of its divisors is an integer number (3750768).

Almost surely, 2^25629961 is an apocalyptic number.

It is an amenable number.

25629961 is a deficient number, since it is larger than the sum of its proper divisors (4376183).

25629961 is an equidigital number, since it uses as much as digits as its factorization.

25629961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89351.

The product of its digits is 58320, while the sum is 40.

The square root of 25629961 is about 5062.6041717677. The cubic root of 25629961 is about 294.8374513867.

The spelling of 25629961 in words is "twenty-five million, six hundred twenty-nine thousand, nine hundred sixty-one".