852725649 has 32 divisors (see below), whose sum is σ = 1207922688. Its totient is φ = 534312000.

The previous prime is 852725623. The next prime is 852725651. The reversal of 852725649 is 946527258.

It is not a de Polignac number, because 852725649 - 2⁵ = 852725617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 852725598 and 852725607.

It is not an unprimeable number, because it can be changed into a prime (852725609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469954 + ... + 471764.

It is an arithmetic number, because the mean of its divisors is an integer number (37747584).

Almost surely, 2^852725649 is an apocalyptic number.

It is an amenable number.

852725649 is a deficient number, since it is larger than the sum of its proper divisors (355197039).

852725649 is a wasteful number, since it uses less digits than its factorization.

852725649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989.

The product of its digits is 1209600, while the sum is 48.

The square root of 852725649 is about 29201.4665556372. The cubic root of 852725649 is about 948.2796747784.

The spelling of 852725649 in words is "eight hundred fifty-two million, seven hundred twenty-five thousand, six hundred forty-nine".