25341989 has 2 divisors, whose sum is σ = 25341990. Its totient is φ = 25341988.

The previous prime is 25341971. The next prime is 25342001. The reversal of 25341989 is 98914352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22877089 + 2464900 = 4783^2 + 1570^2 .

It is a cyclic number.

It is not a de Polignac number, because 25341989 - 2²⁰ = 24293413 is a prime.

It is a super-2 number, since 2×25341989² = 1284432812952242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25341919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12670994 + 12670995.

It is an arithmetic number, because the mean of its divisors is an integer number (12670995).

Almost surely, 2^25341989 is an apocalyptic number.

It is an amenable number.

25341989 is a deficient number, since it is larger than the sum of its proper divisors (1).

25341989 is an equidigital number, since it uses as much as digits as its factorization.

25341989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 25341989 is about 5034.0827367059. The cubic root of 25341989 is about 293.7290491169.

The spelling of 25341989 in words is "twenty-five million, three hundred forty-one thousand, nine hundred eighty-nine".