61812752 has 10 divisors (see below), whose sum is σ = 119762238. Its totient is φ = 30906368.

The previous prime is 61812749. The next prime is 61812761. The reversal of 61812752 is 25721816.

It can be written as a sum of positive squares in only one way, i.e., 59043856 + 2768896 = 7684^2 + 1664^2 .

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, 1931633 + ... + 1931664.

Almost surely, 2^61812752 is an apocalyptic number.

It is an amenable number.

61812752 is a deficient number, since it is larger than the sum of its proper divisors (57949486).

61812752 is a wasteful number, since it uses less digits than its factorization.

61812752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863305 (or 3863299 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 61812752 is about 7862.1086230095. The cubic root of 61812752 is about 395.3903143969.

The spelling of 61812752 in words is "sixty-one million, eight hundred twelve thousand, seven hundred fifty-two".