25755145497 has 6 divisors (see below), whose sum is σ = 37201876842. Its totient is φ = 17170096992.

The previous prime is 25755145447. The next prime is 25755145513. The reversal of 25755145497 is 79454155752.

25755145497 is a `hidden beast` number, since 2 + 5 + 7 + 5 + 5 + 145 + 497 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17279365401 + 8475780096 = 131451^2 + 92064^2 .

It is not a de Polignac number, because 25755145497 - 2¹⁹ = 25754621209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25755145447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1430841408 + ... + 1430841425.

It is an arithmetic number, because the mean of its divisors is an integer number (6200312807).

Almost surely, 2^25755145497 is an apocalyptic number.

It is an amenable number.

25755145497 is a deficient number, since it is larger than the sum of its proper divisors (11446731345).

25755145497 is a wasteful number, since it uses less digits than its factorization.

25755145497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861682839 (or 2861682836 counting only the distinct ones).

The product of its digits is 8820000, while the sum is 54.

The spelling of 25755145497 in words is "twenty-five billion, seven hundred fifty-five million, one hundred forty-five thousand, four hundred ninety-seven".