61199552 has 56 divisors (see below), whose sum is σ = 126351792. Its totient is φ = 29388800.

The previous prime is 61199533. The next prime is 61199581. The reversal of 61199552 is 25599116.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217652 + ... + 217932.

It is an arithmetic number, because the mean of its divisors is an integer number (2256282).

Almost surely, 2^61199552 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 61199552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63175896).

61199552 is an abundant number, since it is smaller than the sum of its proper divisors (65152240).

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

61199552 is a wasteful number, since it uses less digits than its factorization.

61199552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 407 counting only the distinct ones).

The product of its digits is 24300, while the sum is 38.

The square root of 61199552 is about 7823.0142528312. The cubic root of 61199552 is about 394.0785056617.

The spelling of 61199552 in words is "sixty-one million, one hundred ninety-nine thousand, five hundred fifty-two".