25555152373 has 2 divisors, whose sum is σ = 25555152374. Its totient is φ = 25555152372.

The previous prime is 25555152307. The next prime is 25555152377. The reversal of 25555152373 is 37325155552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18363773169 + 7191379204 = 135513^2 + 84802^2 .

It is a cyclic number.

It is not a de Polignac number, because 25555152373 - 2⁹ = 25555151861 is a prime.

It is a super-2 number, since 2×25555152373² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25555152377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777576186 + 12777576187.

It is an arithmetic number, because the mean of its divisors is an integer number (12777576187).

Almost surely, 2^25555152373 is an apocalyptic number.

It is an amenable number.

25555152373 is a deficient number, since it is larger than the sum of its proper divisors (1).

25555152373 is an equidigital number, since it uses as much as digits as its factorization.

25555152373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787500, while the sum is 43.

The spelling of 25555152373 in words is "twenty-five billion, five hundred fifty-five million, one hundred fifty-two thousand, three hundred seventy-three".