25100489 has 2 divisors, whose sum is σ = 25100490. Its totient is φ = 25100488.

The previous prime is 25100479. The next prime is 25100503. The reversal of 25100489 is 98400152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25000000 + 100489 = 5000^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 25100489 - 2⁸ = 25100233 is a prime.

It is not a weakly prime, because it can be changed into another prime (25100459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12550244 + 12550245.

It is an arithmetic number, because the mean of its divisors is an integer number (12550245).

Almost surely, 2^25100489 is an apocalyptic number.

It is an amenable number.

25100489 is a deficient number, since it is larger than the sum of its proper divisors (1).

25100489 is an equidigital number, since it uses as much as digits as its factorization.

25100489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 25100489 is about 5010.0388222049. The cubic root of 25100489 is about 292.7930255600.

It can be divided in two parts, 25 and 100489, that multiplied together give a square (2512225 = 1585²).

The spelling of 25100489 in words is "twenty-five million, one hundred thousand, four hundred eighty-nine".