828057725 has 12 divisors (see below), whose sum is σ = 1120136640. Its totient is φ = 602223600.

The previous prime is 828057701. The next prime is 828057731. The reversal of 828057725 is 527750828.

It is a de Polignac number, because none of the positive numbers 2^k-828057725 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1505285 + ... + 1505834.

It is an arithmetic number, because the mean of its divisors is an integer number (93344720).

Almost surely, 2^828057725 is an apocalyptic number.

It is an amenable number.

828057725 is a deficient number, since it is larger than the sum of its proper divisors (292078915).

828057725 is a wasteful number, since it uses less digits than its factorization.

828057725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011140 (or 3011135 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 828057725 is about 28775.9921636075. The cubic root of 828057725 is about 939.0460085208.

The spelling of 828057725 in words is "eight hundred twenty-eight million, fifty-seven thousand, seven hundred twenty-five".