61252260722 has 12 divisors (see below), whose sum is σ = 94428708570. Its totient is φ = 29798395776.

The previous prime is 61252260721. The next prime is 61252260757. The reversal of 61252260722 is 22706225216.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 60604100041 + 648160681 = 246179^2 + 25459^2 .

It is a super-2 number, since 2×61252260722² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61252260721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11182847 + ... + 11188322.

Almost surely, 2^61252260722 is an apocalyptic number.

61252260722 is a deficient number, since it is larger than the sum of its proper divisors (33176447848).

61252260722 is a wasteful number, since it uses less digits than its factorization.

61252260722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22371245 (or 22371208 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 61252260722 its reverse (22706225216), we get a palindrome (83958485938).

The spelling of 61252260722 in words is "sixty-one billion, two hundred fifty-two million, two hundred sixty thousand, seven hundred twenty-two".