61782258 has 8 divisors (see below), whose sum is σ = 123564528. Its totient is φ = 20594084.

The previous prime is 61782251. The next prime is 61782353. The reversal of 61782258 is 85228716.

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

61782258 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (61782251) 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, 5148516 + ... + 5148527.

It is an arithmetic number, because the mean of its divisors is an integer number (15445566).

Almost surely, 2^61782258 is an apocalyptic number.

61782258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61782258 is a wasteful number, since it uses less digits than its factorization.

61782258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10297048.

The product of its digits is 53760, while the sum is 39.

The square root of 61782258 is about 7860.1690821508. The cubic root of 61782258 is about 395.3252845819.

The spelling of 61782258 in words is "sixty-one million, seven hundred eighty-two thousand, two hundred fifty-eight".