852500551 has 4 divisors (see below), whose sum is σ = 974286352. Its totient is φ = 730714752.

The previous prime is 852500533. The next prime is 852500591. The reversal of 852500551 is 155005258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155005258 = 2 ⋅77502629.

It is a cyclic number.

It is not a de Polignac number, because 852500551 - 2¹¹ = 852498503 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 (852500591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60892890 + ... + 60892903.

It is an arithmetic number, because the mean of its divisors is an integer number (243571588).

Almost surely, 2^852500551 is an apocalyptic number.

852500551 is a deficient number, since it is larger than the sum of its proper divisors (121785801).

852500551 is a wasteful number, since it uses less digits than its factorization.

852500551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121785800.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 852500551 is about 29197.6120770175. The cubic root of 852500551 is about 948.1962268201.

The spelling of 852500551 in words is "eight hundred fifty-two million, five hundred thousand, five hundred fifty-one".