61214250 has 32 divisors (see below), whose sum is σ = 152792640. Its totient is φ = 16323600.

The previous prime is 61214233. The next prime is 61214261. The reversal of 61214250 is 5241216.

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, 40060 + ... + 41559.

It is an arithmetic number, because the mean of its divisors is an integer number (4774770).

Almost surely, 2^61214250 is an apocalyptic number.

61214250 is an abundant number, since it is smaller than the sum of its proper divisors (91578390).

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

61214250 is a wasteful number, since it uses less digits than its factorization.

61214250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81639 (or 81629 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 61214250 is about 7823.9536041569. The cubic root of 61214250 is about 394.1100511118.

Adding to 61214250 its reverse (5241216), we get a palindrome (66455466).

The spelling of 61214250 in words is "sixty-one million, two hundred fourteen thousand, two hundred fifty".