84255251 has 2 divisors, whose sum is σ = 84255252. Its totient is φ = 84255250.

The previous prime is 84255191. The next prime is 84255289. The reversal of 84255251 is 15255248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84255251 - 2²² = 80060947 is a prime.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42127625 + 42127626.

It is an arithmetic number, because the mean of its divisors is an integer number (42127626).

Almost surely, 2^84255251 is an apocalyptic number.

84255251 is a deficient number, since it is larger than the sum of its proper divisors (1).

84255251 is an equidigital number, since it uses as much as digits as its factorization.

84255251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16000, while the sum is 32.

The square root of 84255251 is about 9179.0659110827. The cubic root of 84255251 is about 438.3950672624.

The spelling of 84255251 in words is "eighty-four million, two hundred fifty-five thousand, two hundred fifty-one".