25654651 has 4 divisors (see below), whose sum is σ = 27986904. Its totient is φ = 23322400.

The previous prime is 25654627. The next prime is 25654669. The reversal of 25654651 is 15645652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25654651 - 2⁵ = 25654619 is a prime.

It is a super-2 number, since 2×25654651² = 1316322235863602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25651651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166110 + ... + 1166131.

It is an arithmetic number, because the mean of its divisors is an integer number (6996726).

Almost surely, 2^25654651 is an apocalyptic number.

25654651 is a deficient number, since it is larger than the sum of its proper divisors (2332253).

25654651 is a wasteful number, since it uses less digits than its factorization.

25654651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332252.

The product of its digits is 36000, while the sum is 34.

The square root of 25654651 is about 5065.0420531324. The cubic root of 25654651 is about 294.9320958330.

The spelling of 25654651 in words is "twenty-five million, six hundred fifty-four thousand, six hundred fifty-one".