852020257 has 8 divisors (see below), whose sum is σ = 969888960. Its totient is φ = 740886960.

The previous prime is 852020251. The next prime is 852020269. The reversal of 852020257 is 752020258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 852020257 - 2¹⁹ = 851495969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (852020251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1683582 + ... + 1684087.

It is an arithmetic number, because the mean of its divisors is an integer number (121236120).

Almost surely, 2^852020257 is an apocalyptic number.

It is an amenable number.

852020257 is a deficient number, since it is larger than the sum of its proper divisors (117868703).

852020257 is a wasteful number, since it uses less digits than its factorization.

852020257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367703.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 852020257 is about 29189.3860332827. The cubic root of 852020257 is about 948.0181239006.

Subtracting from 852020257 its reverse (752020258), we obtain a palindrome (99999999).

The spelling of 852020257 in words is "eight hundred fifty-two million, twenty thousand, two hundred fifty-seven".