61558996 has 24 divisors (see below), whose sum is σ = 112321440. Its totient is φ = 29484000.

The previous prime is 61558979. The next prime is 61559011. The reversal of 61558996 is 69985516.

61558996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 7 ways as a sum of consecutive naturals, for example, 13171 + ... + 17221.

It is an arithmetic number, because the mean of its divisors is an integer number (4680060).

Almost surely, 2^61558996 is an apocalyptic number.

It is an amenable number.

61558996 is a deficient number, since it is larger than the sum of its proper divisors (50762444).

61558996 is a wasteful number, since it uses less digits than its factorization.

61558996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215 (or 4213 counting only the distinct ones).

The product of its digits is 583200, while the sum is 49.

The square root of 61558996 is about 7845.9541166132. The cubic root of 61558996 is about 394.8485153246.

It can be divided in two parts, 6155 and 8996, that added together give a palindrome (15151).

The spelling of 61558996 in words is "sixty-one million, five hundred fifty-eight thousand, nine hundred ninety-six".