5025377517581 has 2 divisors, whose sum is σ = 5025377517582. Its totient is φ = 5025377517580.

The previous prime is 5025377517547. The next prime is 5025377517613. The reversal of 5025377517581 is 1857157735205.

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., 4989455896681 + 35921620900 = 2233709^2 + 189530^2 .

It is a cyclic number.

It is not a de Polignac number, because 5025377517581 - 2²⁶ = 5025310408717 is a prime.

It is a super-2 number, since 2×5025377517581² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5025377517781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2512688758790 + 2512688758791.

It is an arithmetic number, because the mean of its divisors is an integer number (2512688758791).

Almost surely, 2^{5025377517581} is an apocalyptic number.

It is an amenable number.

5025377517581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5025377517581 is an equidigital number, since it uses as much as digits as its factorization.

5025377517581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10290000, while the sum is 56.

The spelling of 5025377517581 in words is "five trillion, twenty-five billion, three hundred seventy-seven million, five hundred seventeen thousand, five hundred eighty-one".