61613252 has 6 divisors (see below), whose sum is σ = 107823198. Its totient is φ = 30806624.

The previous prime is 61613207. The next prime is 61613269. The reversal of 61613252 is 25231616.

It can be written as a sum of positive squares in only one way, i.e., 48246916 + 13366336 = 6946^2 + 3656^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7701653 + ... + 7701660.

It is an arithmetic number, because the mean of its divisors is an integer number (17970533).

Almost surely, 2^61613252 is an apocalyptic number.

It is an amenable number.

61613252 is a deficient number, since it is larger than the sum of its proper divisors (46209946).

61613252 is a wasteful number, since it uses less digits than its factorization.

61613252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15403317 (or 15403315 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 61613252 is about 7849.4109333121. The cubic root of 61613252 is about 394.9644832671.

Adding to 61613252 its reverse (25231616), we get a palindrome (86844868).

The spelling of 61613252 in words is "sixty-one million, six hundred thirteen thousand, two hundred fifty-two".