25216325357 has 2 divisors, whose sum is σ = 25216325358. Its totient is φ = 25216325356.

The previous prime is 25216325293. The next prime is 25216325371. The reversal of 25216325357 is 75352361252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15051854596 + 10164470761 = 122686^2 + 100819^2 .

It is a cyclic number.

It is not a de Polignac number, because 25216325357 - 2⁶ = 25216325293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25216325557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12608162678 + 12608162679.

It is an arithmetic number, because the mean of its divisors is an integer number (12608162679).

Almost surely, 2^25216325357 is an apocalyptic number.

It is an amenable number.

25216325357 is a deficient number, since it is larger than the sum of its proper divisors (1).

25216325357 is an equidigital number, since it uses as much as digits as its factorization.

25216325357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 41.

The spelling of 25216325357 in words is "twenty-five billion, two hundred sixteen million, three hundred twenty-five thousand, three hundred fifty-seven".