851952259 has 2 divisors, whose sum is σ = 851952260. Its totient is φ = 851952258.

The previous prime is 851952209. The next prime is 851952287. The reversal of 851952259 is 952259158.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 851952259 - 2⁹ = 851951747 is a prime.

It is not a weakly prime, because it can be changed into another prime (851952209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425976129 + 425976130.

It is an arithmetic number, because the mean of its divisors is an integer number (425976130).

Almost surely, 2^851952259 is an apocalyptic number.

851952259 is a deficient number, since it is larger than the sum of its proper divisors (1).

851952259 is an equidigital number, since it uses as much as digits as its factorization.

851952259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324000, while the sum is 46.

The square root of 851952259 is about 29188.2212373416. The cubic root of 851952259 is about 947.9929034316.

The spelling of 851952259 in words is "eight hundred fifty-one million, nine hundred fifty-two thousand, two hundred fifty-nine".