61116552 has 128 divisors (see below), whose sum is σ = 196761600. Its totient is φ = 17216064.

The previous prime is 61116551. The next prime is 61116557. The reversal of 61116552 is 25561116.

It is a happy number.

61116552 is a `hidden beast` number, since 6 + 1 + 1 + 1 + 655 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (61116551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125253 + ... + 125739.

It is an arithmetic number, because the mean of its divisors is an integer number (1537200).

Almost surely, 2^61116552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61116552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98380800).

61116552 is an abundant number, since it is smaller than the sum of its proper divisors (135645048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61116552 is a wasteful number, since it uses less digits than its factorization.

61116552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 582 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 61116552 is about 7817.7075923828. The cubic root of 61116552 is about 393.9002728005.

Adding to 61116552 its reverse (25561116), we get a palindrome (86677668).

The spelling of 61116552 in words is "sixty-one million, one hundred sixteen thousand, five hundred fifty-two".