25612507 has 2 divisors, whose sum is σ = 25612508. Its totient is φ = 25612506.

The previous prime is 25612487. The next prime is 25612519. The reversal of 25612507 is 70521652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25612507 - 2¹⁵ = 25579739 is a prime.

It is a super-3 number, since 3×25612507³ (a number of 23 digits) contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (25612537) 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 as a sum of consecutive naturals, namely, 12806253 + 12806254.

It is an arithmetic number, because the mean of its divisors is an integer number (12806254).

Almost surely, 2^25612507 is an apocalyptic number.

25612507 is a deficient number, since it is larger than the sum of its proper divisors (1).

25612507 is an equidigital number, since it uses as much as digits as its factorization.

25612507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 25612507 is about 5060.8800618074. The cubic root of 25612507 is about 294.7705081000.

The spelling of 25612507 in words is "twenty-five million, six hundred twelve thousand, five hundred seven".