852450551 has 4 divisors (see below), whose sum is σ = 852517632. Its totient is φ = 852383472.

The previous prime is 852450481. The next prime is 852450553. The reversal of 852450551 is 155054258.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 155054258 = 2 ⋅77527129.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-852450551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852450553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7991 + ... + 42056.

It is an arithmetic number, because the mean of its divisors is an integer number (213129408).

Almost surely, 2^852450551 is an apocalyptic number.

852450551 is a deficient number, since it is larger than the sum of its proper divisors (67081).

852450551 is a wasteful number, since it uses less digits than its factorization.

852450551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67080.

The product of its (nonzero) digits is 40000, while the sum is 35.

The square root of 852450551 is about 29196.7558300576. The cubic root of 852450551 is about 948.1776889090.

The spelling of 852450551 in words is "eight hundred fifty-two million, four hundred fifty thousand, five hundred fifty-one".