852421251 has 8 divisors (see below), whose sum is σ = 1239885504. Its totient is φ = 516618920.

The previous prime is 852421217. The next prime is 852421277. The reversal of 852421251 is 152124258.

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

It is a cyclic number.

It is not a de Polignac number, because 852421251 - 2⁹ = 852420739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (852421151) 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, 12915441 + ... + 12915506.

It is an arithmetic number, because the mean of its divisors is an integer number (154985688).

Almost surely, 2^852421251 is an apocalyptic number.

852421251 is a deficient number, since it is larger than the sum of its proper divisors (387464253).

852421251 is a wasteful number, since it uses less digits than its factorization.

852421251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25830961.

The product of its digits is 6400, while the sum is 30.

The square root of 852421251 is about 29196.2540576698. The cubic root of 852421251 is about 948.1668253562.

The spelling of 852421251 in words is "eight hundred fifty-two million, four hundred twenty-one thousand, two hundred fifty-one".