61236582 has 64 divisors (see below), whose sum is σ = 143769600. Its totient is φ = 17189280.

The previous prime is 61236569. The next prime is 61236583. The reversal of 61236582 is 28563216.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61236583) 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, 58419 + ... + 59457.

It is an arithmetic number, because the mean of its divisors is an integer number (2246400).

Almost surely, 2^61236582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61236582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71884800).

61236582 is an abundant number, since it is smaller than the sum of its proper divisors (82533018).

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

61236582 is a wasteful number, since it uses less digits than its factorization.

61236582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121.

The product of its digits is 17280, while the sum is 33.

The square root of 61236582 is about 7825.3806297202. The cubic root of 61236582 is about 394.1579713025.

Adding to 61236582 its reverse (28563216), we get a palindrome (89799798).

The spelling of 61236582 in words is "sixty-one million, two hundred thirty-six thousand, five hundred eighty-two".