61360650 has 144 divisors (see below), whose sum is σ = 188284824. Its totient is φ = 14192640.

The previous prime is 61360627. The next prime is 61360657. The reversal of 61360650 is 5606316.

61360650 is a `hidden beast` number, since 6 + 1 + 3 + 6 + 0 + 650 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 660969 + 60699681 = 813^2 + 7791^2 .

It is not an unprimeable number, because it can be changed into a prime (61360657) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 99142 + ... + 99758.

Almost surely, 2^61360650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61360650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94142412).

61360650 is an abundant number, since it is smaller than the sum of its proper divisors (126924174).

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

61360650 is a wasteful number, since it uses less digits than its factorization.

61360650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 61360650 is about 7833.3039006539. The cubic root of 61360650 is about 394.4239855083.

Adding to 61360650 its reverse (5606316), we get a palindrome (66966966).

The spelling of 61360650 in words is "sixty-one million, three hundred sixty thousand, six hundred fifty".