61222663825 has 6 divisors (see below), whose sum is σ = 75916103174. Its totient is φ = 48978131040.

The previous prime is 61222663787. The next prime is 61222663829. The reversal of 61222663825 is 52836622216.

It can be written as a sum of positive squares in 3 ways, for example, as 4028049 + 61218635776 = 2007^2 + 247424^2 .

It is not a de Polignac number, because 61222663825 - 2¹¹ = 61222661777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61222663829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1224453252 + ... + 1224453301.

Almost surely, 2^61222663825 is an apocalyptic number.

It is an amenable number.

61222663825 is a deficient number, since it is larger than the sum of its proper divisors (14693439349).

61222663825 is a wasteful number, since it uses less digits than its factorization.

61222663825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448906563 (or 2448906558 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The spelling of 61222663825 in words is "sixty-one billion, two hundred twenty-two million, six hundred sixty-three thousand, eight hundred twenty-five".