25712155471 has 2 divisors, whose sum is σ = 25712155472. Its totient is φ = 25712155470.

The previous prime is 25712155453. The next prime is 25712155493. The reversal of 25712155471 is 17455121752.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25712155471 is a prime.

It is a super-3 number, since 3×25712155471³ (a number of 32 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 (25712155871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12856077735 + 12856077736.

It is an arithmetic number, because the mean of its divisors is an integer number (12856077736).

Almost surely, 2^25712155471 is an apocalyptic number.

25712155471 is a deficient number, since it is larger than the sum of its proper divisors (1).

25712155471 is an equidigital number, since it uses as much as digits as its factorization.

25712155471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98000, while the sum is 40.

The spelling of 25712155471 in words is "twenty-five billion, seven hundred twelve million, one hundred fifty-five thousand, four hundred seventy-one".