61550382 has 8 divisors (see below), whose sum is σ = 123100776. Its totient is φ = 20516792.

The previous prime is 61550381. The next prime is 61550429. The reversal of 61550382 is 28305516.

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

61550382 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61550381) 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, 5129193 + ... + 5129204.

It is an arithmetic number, because the mean of its divisors is an integer number (15387597).

Almost surely, 2^61550382 is an apocalyptic number.

61550382 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.

61550382 is a wasteful number, since it uses less digits than its factorization.

61550382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10258402.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 61550382 is about 7845.4051520619. The cubic root of 61550382 is about 394.8300973083.

Adding to 61550382 its reverse (28305516), we get a palindrome (89855898).

The spelling of 61550382 in words is "sixty-one million, five hundred fifty thousand, three hundred eighty-two".