61752820 has 24 divisors (see below), whose sum is σ = 130233600. Its totient is φ = 24595872.

The previous prime is 61752781. The next prime is 61752829. The reversal of 61752820 is 2825716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61752829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1680 + ... + 11239.

It is an arithmetic number, because the mean of its divisors is an integer number (5426400).

Almost surely, 2^61752820 is an apocalyptic number.

It is an amenable number.

61752820 is an abundant number, since it is smaller than the sum of its proper divisors (68480780).

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

61752820 is a wasteful number, since it uses less digits than its factorization.

61752820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13167 (or 13165 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 61752820 is about 7858.2962530055. The cubic root of 61752820 is about 395.2624864316.

The spelling of 61752820 in words is "sixty-one million, seven hundred fifty-two thousand, eight hundred twenty".