51959560 has 16 divisors (see below), whose sum is σ = 116909100. Its totient is φ = 20783808.

The previous prime is 51959549. The next prime is 51959563. The reversal of 51959560 is 6595915.

It can be written as a sum of positive squares in 2 ways, for example, as 51926436 + 33124 = 7206^2 + 182^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1298989 = 51959560 / (5 + 1 + 9 + 5 + 9 + 5 + 6 + 0).

It is not an unprimeable number, because it can be changed into a prime (51959563) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 649455 + ... + 649534.

Almost surely, 2^51959560 is an apocalyptic number.

It is an amenable number.

51959560 is an abundant number, since it is smaller than the sum of its proper divisors (64949540).

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

51959560 is a wasteful number, since it uses less digits than its factorization.

51959560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299000 (or 1298996 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 40.

The square root of 51959560 is about 7208.2979960598. The cubic root of 51959560 is about 373.1543324144.

The spelling of 51959560 in words is "fifty-one million, nine hundred fifty-nine thousand, five hundred sixty".