61628750 has 40 divisors (see below), whose sum is σ = 118087200. Its totient is φ = 24104000.

The previous prime is 61628747. The next prime is 61628773. The reversal of 61628750 is 5782616.

61628750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61628750.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 58226 + ... + 59274.

It is an arithmetic number, because the mean of its divisors is an integer number (2952180).

Almost surely, 2^61628750 is an apocalyptic number.

61628750 is a deficient number, since it is larger than the sum of its proper divisors (56458450).

61628750 is a wasteful number, since it uses less digits than its factorization.

61628750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 61628750 is about 7850.3980790785. The cubic root of 61628750 is about 394.9975965244.

The spelling of 61628750 in words is "sixty-one million, six hundred twenty-eight thousand, seven hundred fifty".