61217352 has 96 divisors (see below), whose sum is σ = 197758080. Its totient is φ = 16727040.

The previous prime is 61217341. The next prime is 61217353. The reversal of 61217352 is 25371216.

It is a happy number.

61217352 is a `hidden beast` number, since 612 + 17 + 35 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (61217353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8952 + ... + 14232.

It is an arithmetic number, because the mean of its divisors is an integer number (2059980).

Almost surely, 2^61217352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61217352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98879040).

61217352 is an abundant number, since it is smaller than the sum of its proper divisors (136540728).

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

61217352 is a wasteful number, since it uses less digits than its factorization.

61217352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323 (or 5316 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 61217352 is about 7824.1518390174. The cubic root of 61217352 is about 394.1167081060.

Adding to 61217352 its reverse (25371216), we get a palindrome (86588568).

The spelling of 61217352 in words is "sixty-one million, two hundred seventeen thousand, three hundred fifty-two".