61875560 has 64 divisors (see below), whose sum is σ = 147646800. Its totient is φ = 23296000.

The previous prime is 61875551. The next prime is 61875599. The reversal of 61875560 is 6557816.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 315844 + 61559716 = 562^2 + 7846^2 .

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 in 15 ways as a sum of consecutive naturals, for example, 46910 + ... + 48210.

Almost surely, 2^61875560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61875560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73823400).

61875560 is an abundant number, since it is smaller than the sum of its proper divisors (85771240).

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

61875560 is a wasteful number, since it uses less digits than its factorization.

61875560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 61875560 is about 7866.1019571323. The cubic root of 61875560 is about 395.5241878973.

The spelling of 61875560 in words is "sixty-one million, eight hundred seventy-five thousand, five hundred sixty".