61316522 has 4 divisors (see below), whose sum is σ = 91974786. Its totient is φ = 30658260.

The previous prime is 61316491. The next prime is 61316531. The reversal of 61316522 is 22561316.

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

It can be written as a sum of positive squares in only one way, i.e., 37100281 + 24216241 = 6091^2 + 4921^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61316491 and 61316500.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15329129 + ... + 15329132.

Almost surely, 2^61316522 is an apocalyptic number.

61316522 is a deficient number, since it is larger than the sum of its proper divisors (30658264).

61316522 is a wasteful number, since it uses less digits than its factorization.

61316522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30658263.

The product of its digits is 2160, while the sum is 26.

The square root of 61316522 is about 7830.4867026258. The cubic root of 61316522 is about 394.3294117836.

Adding to 61316522 its reverse (22561316), we get a palindrome (83877838).

The spelling of 61316522 in words is "sixty-one million, three hundred sixteen thousand, five hundred twenty-two".