61308650 has 24 divisors (see below), whose sum is σ = 122807244. Its totient is φ = 22636800.

The previous prime is 61308641. The next prime is 61308671. The reversal of 61308650 is 5680316.

It can be written as a sum of positive squares in 6 ways, for example, as 26863489 + 34445161 = 5183^2 + 5869^2 .

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, 46511 + ... + 47810.

Almost surely, 2^61308650 is an apocalyptic number.

61308650 is an abundant number, since it is smaller than the sum of its proper divisors (61498594).

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

61308650 is a wasteful number, since it uses less digits than its factorization.

61308650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94346 (or 94341 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 61308650 is about 7829.9840357436. The cubic root of 61308650 is about 394.3125359951.

Adding to 61308650 its reverse (5680316), we get a palindrome (66988966).

The spelling of 61308650 in words is "sixty-one million, three hundred eight thousand, six hundred fifty".