61252650 has 72 divisors (see below), whose sum is σ = 166745280. Its totient is φ = 16117920.

The previous prime is 61252643. The next prime is 61252651. The reversal of 61252650 is 5625216.

61252650 is a `hidden beast` number, since 6 + 1 + 2 + 5 + 2 + 650 = 666.

It is not an unprimeable number, because it can be changed into a prime (61252651) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34689 + ... + 36411.

Almost surely, 2^61252650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61252650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83372640).

61252650 is an abundant number, since it is smaller than the sum of its proper divisors (105492630).

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

61252650 is a wasteful number, since it uses less digits than its factorization.

61252650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1812 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 61252650 is about 7826.4072217078. The cubic root of 61252650 is about 394.1924429435.

Adding to 61252650 its reverse (5625216), we get a palindrome (66877866).

The spelling of 61252650 in words is "sixty-one million, two hundred fifty-two thousand, six hundred fifty".