25040357 has 2 divisors, whose sum is σ = 25040358. Its totient is φ = 25040356.

The previous prime is 25040341. The next prime is 25040377. The reversal of 25040357 is 75304052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15792676 + 9247681 = 3974^2 + 3041^2 .

It is a cyclic number.

It is not a de Polignac number, because 25040357 - 2⁴ = 25040341 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25040377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12520178 + 12520179.

It is an arithmetic number, because the mean of its divisors is an integer number (12520179).

Almost surely, 2^25040357 is an apocalyptic number.

It is an amenable number.

25040357 is a deficient number, since it is larger than the sum of its proper divisors (1).

25040357 is an equidigital number, since it uses as much as digits as its factorization.

25040357 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 26.

The square root of 25040357 is about 5004.0340726258. The cubic root of 25040357 is about 292.5590286790.

The spelling of 25040357 in words is "twenty-five million, forty thousand, three hundred fifty-seven".