25530371 has 2 divisors, whose sum is σ = 25530372. Its totient is φ = 25530370.

The previous prime is 25530359. The next prime is 25530383. The reversal of 25530371 is 17303552.

It is a balanced prime because it is at equal distance from previous prime (25530359) and next prime (25530383).

It is a cyclic number.

It is not a de Polignac number, because 25530371 - 2¹⁴ = 25513987 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25530371.

It is not a weakly prime, because it can be changed into another prime (25530671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12765185 + 12765186.

It is an arithmetic number, because the mean of its divisors is an integer number (12765186).

Almost surely, 2^25530371 is an apocalyptic number.

25530371 is a deficient number, since it is larger than the sum of its proper divisors (1).

25530371 is an equidigital number, since it uses as much as digits as its factorization.

25530371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 25530371 is about 5052.7587514149. The cubic root of 25530371 is about 294.4550736983.

The spelling of 25530371 in words is "twenty-five million, five hundred thirty thousand, three hundred seventy-one".