61489250 has 32 divisors (see below), whose sum is σ = 116857728. Its totient is φ = 24222000.

The previous prime is 61489247. The next prime is 61489261. The reversal of 61489250 is 5298416.

It is a self number, because there is not a number n which added to its sum of digits gives 61489250.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14915 + ... + 18585.

It is an arithmetic number, because the mean of its divisors is an integer number (3651804).

Almost surely, 2^61489250 is an apocalyptic number.

61489250 is a deficient number, since it is larger than the sum of its proper divisors (55368478).

61489250 is a wasteful number, since it uses less digits than its factorization.

61489250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755 (or 3745 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 61489250 is about 7841.5081457587. The cubic root of 61489250 is about 394.6993385812.

The spelling of 61489250 in words is "sixty-one million, four hundred eighty-nine thousand, two hundred fifty".