853798725 has 144 divisors (see below), whose sum is σ = 1800926400. Its totient is φ = 397509120.

The previous prime is 853798723. The next prime is 853798747. The reversal of 853798725 is 527897358.

853798725 is a `hidden beast` number, since 8 + 537 + 9 + 87 + 25 = 666.

It is not a de Polignac number, because 853798725 - 2¹ = 853798723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853798723) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1500241 + ... + 1500809.

Almost surely, 2^853798725 is an apocalyptic number.

It is an amenable number.

853798725 is an abundant number, since it is smaller than the sum of its proper divisors (947127675).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853798725 is a wasteful number, since it uses less digits than its factorization.

853798725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 609 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 853798725 is about 29219.8344451162. The cubic root of 853798725 is about 948.6772819955.

The spelling of 853798725 in words is "eight hundred fifty-three million, seven hundred ninety-eight thousand, seven hundred twenty-five".