61045550 has 24 divisors (see below), whose sum is σ = 113753136. Its totient is φ = 24373440.

The previous prime is 61045549. The next prime is 61045571. The reversal of 61045550 is 5554016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46199 + ... + 47501.

It is an arithmetic number, because the mean of its divisors is an integer number (4739714).

Almost surely, 2^61045550 is an apocalyptic number.

61045550 is a deficient number, since it is larger than the sum of its proper divisors (52707586).

61045550 is a wasteful number, since it uses less digits than its factorization.

61045550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 2247 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 61045550 is about 7813.1651716830. The cubic root of 61045550 is about 393.7476761432.

Adding to 61045550 its reverse (5554016), we get a palindrome (66599566).

The spelling of 61045550 in words is "sixty-one million, forty-five thousand, five hundred fifty".