61500442 has 8 divisors (see below), whose sum is σ = 92289600. Its totient is φ = 30737244.

The previous prime is 61500437. The next prime is 61500463. The reversal of 61500442 is 24400516.

61500442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309 + ... + 11167.

It is an arithmetic number, because the mean of its divisors is an integer number (11536200).

Almost surely, 2^61500442 is an apocalyptic number.

61500442 is a deficient number, since it is larger than the sum of its proper divisors (30789158).

61500442 is a wasteful number, since it uses less digits than its factorization.

61500442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12980.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 61500442 is about 7842.2217515191. The cubic root of 61500442 is about 394.7232842682.

Adding to 61500442 its reverse (24400516), we get a palindrome (85900958).

The spelling of 61500442 in words is "sixty-one million, five hundred thousand, four hundred forty-two".