61503650 has 24 divisors (see below), whose sum is σ = 123197844. Its totient is φ = 22708800.

The previous prime is 61503643. The next prime is 61503653. The reversal of 61503650 is 5630516.

61503650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2229049 + 59274601 = 1493^2 + 7699^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61503653) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 46661 + ... + 47960.

Almost surely, 2^61503650 is an apocalyptic number.

61503650 is an abundant number, since it is smaller than the sum of its proper divisors (61694194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61503650 is a wasteful number, since it uses less digits than its factorization.

61503650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94646 (or 94641 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 61503650 is about 7842.4262827265. The cubic root of 61503650 is about 394.7301473640.

The spelling of 61503650 in words is "sixty-one million, five hundred three thousand, six hundred fifty".