255421405271 has 2 divisors, whose sum is σ = 255421405272. Its totient is φ = 255421405270.

The previous prime is 255421405157. The next prime is 255421405277. The reversal of 255421405271 is 172504124552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255421405271 is a prime.

It is a super-2 number, since 2×255421405271² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255421405277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127710702635 + 127710702636.

It is an arithmetic number, because the mean of its divisors is an integer number (127710702636).

Almost surely, 2^255421405271 is an apocalyptic number.

255421405271 is a deficient number, since it is larger than the sum of its proper divisors (1).

255421405271 is an equidigital number, since it uses as much as digits as its factorization.

255421405271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112000, while the sum is 38.

The spelling of 255421405271 in words is "two hundred fifty-five billion, four hundred twenty-one million, four hundred five thousand, two hundred seventy-one".