25730651 has 8 divisors (see below), whose sum is σ = 27279744. Its totient is φ = 24226560.

The previous prime is 25730647. The next prime is 25730681. The reversal of 25730651 is 15603752.

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 25730651 - 2² = 25730647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25730681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10070 + ... + 12363.

It is an arithmetic number, because the mean of its divisors is an integer number (3409968).

Almost surely, 2^25730651 is an apocalyptic number.

25730651 is a deficient number, since it is larger than the sum of its proper divisors (1549093).

25730651 is a wasteful number, since it uses less digits than its factorization.

25730651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22501.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 25730651 is about 5072.5389106443. The cubic root of 25730651 is about 295.2230468648.

The spelling of 25730651 in words is "twenty-five million, seven hundred thirty thousand, six hundred fifty-one".