85801451 has 2 divisors, whose sum is σ = 85801452. Its totient is φ = 85801450.

The previous prime is 85801433. The next prime is 85801519. The reversal of 85801451 is 15410858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85801451 - 2²⁶ = 18692587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85801411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42900725 + 42900726.

It is an arithmetic number, because the mean of its divisors is an integer number (42900726).

Almost surely, 2^85801451 is an apocalyptic number.

85801451 is a deficient number, since it is larger than the sum of its proper divisors (1).

85801451 is an equidigital number, since it uses as much as digits as its factorization.

85801451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 85801451 is about 9262.9072650006. The cubic root of 85801451 is about 441.0605460172.

The spelling of 85801451 in words is "eighty-five million, eight hundred one thousand, four hundred fifty-one".