61580242 has 8 divisors (see below), whose sum is σ = 92407932. Its totient is φ = 30777600.

The previous prime is 61580219. The next prime is 61580243. The reversal of 61580242 is 24208516.

It can be written as a sum of positive squares in 2 ways, for example, as 61449921 + 130321 = 7839^2 + 361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61580242.

It is not an unprimeable number, because it can be changed into a prime (61580243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2142 + ... + 11302.

Almost surely, 2^61580242 is an apocalyptic number.

61580242 is a deficient number, since it is larger than the sum of its proper divisors (30827690).

61580242 is a wasteful number, since it uses less digits than its factorization.

61580242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12524.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 61580242 is about 7847.3079460411. The cubic root of 61580242 is about 394.8939350963.

Adding to 61580242 its reverse (24208516), we get a palindrome (85788758).

The spelling of 61580242 in words is "sixty-one million, five hundred eighty thousand, two hundred forty-two".