851625345 has 8 divisors (see below), whose sum is σ = 1362600576. Its totient is φ = 454200176.

The previous prime is 851625317. The next prime is 851625349. The reversal of 851625345 is 543526158.

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 851625345 - 2¹⁰ = 851624321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (851625349) 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, 28387497 + ... + 28387526.

It is an arithmetic number, because the mean of its divisors is an integer number (170325072).

Almost surely, 2^851625345 is an apocalyptic number.

It is an amenable number.

851625345 is a deficient number, since it is larger than the sum of its proper divisors (510975231).

851625345 is a wasteful number, since it uses less digits than its factorization.

851625345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56775031.

The product of its digits is 144000, while the sum is 39.

The square root of 851625345 is about 29182.6205985686. The cubic root of 851625345 is about 947.8716322385.

The spelling of 851625345 in words is "eight hundred fifty-one million, six hundred twenty-five thousand, three hundred forty-five".