25054170780493 has 2 divisors, whose sum is σ = 25054170780494. Its totient is φ = 25054170780492.

The previous prime is 25054170780389. The next prime is 25054170780607. The reversal of 25054170780493 is 39408707145052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15261195407364 + 9792975373129 = 3906558^2 + 3129373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25054170780493 is a prime.

It is a super-3 number, since 3×25054170780493³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25054170786493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12527085390246 + 12527085390247.

It is an arithmetic number, because the mean of its divisors is an integer number (12527085390247).

Almost surely, 2^{25054170780493} is an apocalyptic number.

It is an amenable number.

25054170780493 is a deficient number, since it is larger than the sum of its proper divisors (1).

25054170780493 is an equidigital number, since it uses as much as digits as its factorization.

25054170780493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 25054170780493 in words is "twenty-five trillion, fifty-four billion, one hundred seventy million, seven hundred eighty thousand, four hundred ninety-three".