855262531 has 4 divisors (see below), whose sum is σ = 855323352. Its totient is φ = 855201712.

The previous prime is 855262493. The next prime is 855262543. The reversal of 855262531 is 135262558.

It is a happy number.

855262531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 855262531 - 2¹³ = 855254339 is a prime.

It is a super-2 number, since 2×855262531² = 1462947993865051922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855262631) 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, 2700 + ... + 41446.

It is an arithmetic number, because the mean of its divisors is an integer number (213830838).

Almost surely, 2^855262531 is an apocalyptic number.

855262531 is a deficient number, since it is larger than the sum of its proper divisors (60821).

855262531 is a wasteful number, since it uses less digits than its factorization.

855262531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60820.

The product of its digits is 72000, while the sum is 37.

The square root of 855262531 is about 29244.8718752536. The cubic root of 855262531 is about 949.2191297007.

The spelling of 855262531 in words is "eight hundred fifty-five million, two hundred sixty-two thousand, five hundred thirty-one".