25270787 has 2 divisors, whose sum is σ = 25270788. Its totient is φ = 25270786.

The previous prime is 25270769. The next prime is 25270793. The reversal of 25270787 is 78707252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25270787 - 2¹⁴ = 25254403 is a prime.

It is a super-2 number, since 2×25270787² = 1277225351198738, which contains 22 as substring.

It is a Chen prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25270787.

It is not a weakly prime, because it can be changed into another prime (25270087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12635393 + 12635394.

It is an arithmetic number, because the mean of its divisors is an integer number (12635394).

Almost surely, 2^25270787 is an apocalyptic number.

25270787 is a deficient number, since it is larger than the sum of its proper divisors (1).

25270787 is an equidigital number, since it uses as much as digits as its factorization.

25270787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 25270787 is about 5027.0057688449. The cubic root of 25270787 is about 293.4536995978.

The spelling of 25270787 in words is "twenty-five million, two hundred seventy thousand, seven hundred eighty-seven".