61000022 has 4 divisors (see below), whose sum is σ = 91500036. Its totient is φ = 30500010.

The previous prime is 61000003. The next prime is 61000039. The reversal of 61000022 is 22000016.

61000022 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.

It is a junction number, because it is equal to n+sod(n) for n = 60999967 and 61000012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15250004 + ... + 15250007.

It is an arithmetic number, because the mean of its divisors is an integer number (22875009).

Almost surely, 2^61000022 is an apocalyptic number.

61000022 is a deficient number, since it is larger than the sum of its proper divisors (30500014).

61000022 is a wasteful number, since it uses less digits than its factorization.

61000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30500013.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 61000022 is about 7810.2510843122. The cubic root of 61000022 is about 393.6497656342.

Adding to 61000022 its reverse (22000016), we get a palindrome (83000038).

The spelling of 61000022 in words is "sixty-one million, twenty-two", and thus it is an aban number and an uban number.