852020251 has 2 divisors, whose sum is σ = 852020252. Its totient is φ = 852020250.

The previous prime is 852020233. The next prime is 852020269. The reversal of 852020251 is 152020258.

It is a balanced prime because it is at equal distance from previous prime (852020233) and next prime (852020269).

It is a cyclic number.

It is not a de Polignac number, because 852020251 - 2⁵ = 852020219 is a prime.

It is a super-2 number, since 2×852020251² = 1451877016228206002, which contains 22 as substring.

It is equal to p_43680031 and since 852020251 and 43680031 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (852090251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426010125 + 426010126.

It is an arithmetic number, because the mean of its divisors is an integer number (426010126).

Almost surely, 2^852020251 is an apocalyptic number.

852020251 is a deficient number, since it is larger than the sum of its proper divisors (1).

852020251 is an equidigital number, since it uses as much as digits as its factorization.

852020251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 852020251 is about 29189.3859305056. The cubic root of 852020251 is about 948.0181216752.

The spelling of 852020251 in words is "eight hundred fifty-two million, twenty thousand, two hundred fifty-one".