826545061 has 4 divisors (see below), whose sum is σ = 826670124. Its totient is φ = 826420000.

The previous prime is 826545029. The next prime is 826545067. The reversal of 826545061 is 160545628.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 187416100 + 639128961 = 13690^2 + 25281^2 .

It is a cyclic number.

It is not a de Polignac number, because 826545061 - 2⁵ = 826545029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 826545061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826545067) 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, 52030 + ... + 66031.

It is an arithmetic number, because the mean of its divisors is an integer number (206667531).

Almost surely, 2^826545061 is an apocalyptic number.

It is an amenable number.

826545061 is a deficient number, since it is larger than the sum of its proper divisors (125063).

826545061 is a wasteful number, since it uses less digits than its factorization.

826545061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125062.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 826545061 is about 28749.6967114438. The cubic root of 826545061 is about 938.4738556079.

The spelling of 826545061 in words is "eight hundred twenty-six million, five hundred forty-five thousand, sixty-one".