61443532 has 12 divisors (see below), whose sum is σ = 110432560. Its totient is φ = 29891376.

The previous prime is 61443509. The next prime is 61443539. The reversal of 61443532 is 23534416.

It is a self number, because there is not a number n which added to its sum of digits gives 61443532.

It is not an unprimeable number, because it can be changed into a prime (61443539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207432 + ... + 207727.

Almost surely, 2^61443532 is an apocalyptic number.

It is an amenable number.

61443532 is a deficient number, since it is larger than the sum of its proper divisors (48989028).

61443532 is a wasteful number, since it uses less digits than its factorization.

61443532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415200 (or 415198 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 61443532 is about 7838.5924756936. The cubic root of 61443532 is about 394.6014930857.

Adding to 61443532 its reverse (23534416), we get a palindrome (84977948).

The spelling of 61443532 in words is "sixty-one million, four hundred forty-three thousand, five hundred thirty-two".