25041332557 has 2 divisors, whose sum is σ = 25041332558. Its totient is φ = 25041332556.

The previous prime is 25041332497. The next prime is 25041332573. The reversal of 25041332557 is 75523314052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22254970761 + 2786361796 = 149181^2 + 52786^2 .

It is a cyclic number.

It is not a de Polignac number, because 25041332557 - 2²⁷ = 24907114829 is a prime.

It is a super-3 number, since 3×25041332557³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25041332597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12520666278 + 12520666279.

It is an arithmetic number, because the mean of its divisors is an integer number (12520666279).

Almost surely, 2^25041332557 is an apocalyptic number.

It is an amenable number.

25041332557 is a deficient number, since it is larger than the sum of its proper divisors (1).

25041332557 is an equidigital number, since it uses as much as digits as its factorization.

25041332557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 37.

The spelling of 25041332557 in words is "twenty-five billion, forty-one million, three hundred thirty-two thousand, five hundred fifty-seven".