25772015 has 8 divisors (see below), whose sum is σ = 30956640. Its totient is φ = 20597472.

The previous prime is 25772009. The next prime is 25772053. The reversal of 25772015 is 51027752.

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 25772015 - 2¹⁰ = 25770991 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 5342 + ... + 8948.

It is an arithmetic number, because the mean of its divisors is an integer number (3869580).

Almost surely, 2^25772015 is an apocalyptic number.

25772015 is a deficient number, since it is larger than the sum of its proper divisors (5184625).

25772015 is a wasteful number, since it uses less digits than its factorization.

25772015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 25772015 is about 5076.6145215094. The cubic root of 25772015 is about 295.3811600849.

Adding to 25772015 its reverse (51027752), we get a palindrome (76799767).

The spelling of 25772015 in words is "twenty-five million, seven hundred seventy-two thousand, fifteen".