61543752 has 16 divisors (see below), whose sum is σ = 153859440. Its totient is φ = 20514576.

The previous prime is 61543751. The next prime is 61543799. The reversal of 61543752 is 25734516.

It is not an unprimeable number, because it can be changed into a prime (61543751) 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, 1282138 + ... + 1282185.

It is an arithmetic number, because the mean of its divisors is an integer number (9616215).

Almost surely, 2^61543752 is an apocalyptic number.

It is an amenable number.

61543752 is an abundant number, since it is smaller than the sum of its proper divisors (92315688).

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

61543752 is a wasteful number, since it uses less digits than its factorization.

61543752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564332 (or 2564328 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 61543752 is about 7844.9826003631. The cubic root of 61543752 is about 394.8159202095.

The spelling of 61543752 in words is "sixty-one million, five hundred forty-three thousand, seven hundred fifty-two".