25547361353 has 2 divisors, whose sum is σ = 25547361354. Its totient is φ = 25547361352.

The previous prime is 25547361347. The next prime is 25547361377. The reversal of 25547361353 is 35316374552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25142224969 + 405136384 = 158563^2 + 20128^2 .

It is a cyclic number.

It is not a de Polignac number, because 25547361353 - 2¹⁴ = 25547344969 is a prime.

It is not a weakly prime, because it can be changed into another prime (25547363353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12773680676 + 12773680677.

It is an arithmetic number, because the mean of its divisors is an integer number (12773680677).

Almost surely, 2^25547361353 is an apocalyptic number.

It is an amenable number.

25547361353 is a deficient number, since it is larger than the sum of its proper divisors (1).

25547361353 is an equidigital number, since it uses as much as digits as its factorization.

25547361353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134000, while the sum is 44.

The spelling of 25547361353 in words is "twenty-five billion, five hundred forty-seven million, three hundred sixty-one thousand, three hundred fifty-three".