61443572 has 12 divisors (see below), whose sum is σ = 108822336. Its totient is φ = 30351480.

The previous prime is 61443563. The next prime is 61443601. The reversal of 61443572 is 27534416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92204 + ... + 92867.

It is an arithmetic number, because the mean of its divisors is an integer number (9068528).

Almost surely, 2^61443572 is an apocalyptic number.

It is an amenable number.

61443572 is a deficient number, since it is larger than the sum of its proper divisors (47378764).

61443572 is a wasteful number, since it uses less digits than its factorization.

61443572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185158 (or 185156 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 61443572 is about 7838.5950271716. The cubic root of 61443572 is about 394.6015787148.

Adding to 61443572 its reverse (27534416), we get a palindrome (88977988).

The spelling of 61443572 in words is "sixty-one million, four hundred forty-three thousand, five hundred seventy-two".