61533696 has 160 divisors (see below), whose sum is σ = 192487680. Its totient is φ = 17104896.

The previous prime is 61533683. The next prime is 61533697. The reversal of 61533696 is 69633516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61533697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634320 + ... + 634416.

It is an arithmetic number, because the mean of its divisors is an integer number (1203048).

Almost surely, 2^61533696 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 61533696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96243840).

61533696 is an abundant number, since it is smaller than the sum of its proper divisors (130953984).

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

61533696 is an equidigital number, since it uses as much as digits as its factorization.

61533696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 168 counting only the distinct ones).

The product of its digits is 87480, while the sum is 39.

The square root of 61533696 is about 7844.3416549765. The cubic root of 61533696 is about 394.7944152637.

The spelling of 61533696 in words is "sixty-one million, five hundred thirty-three thousand, six hundred ninety-six".