51485952 has 144 divisors (see below), whose sum is σ = 160184192. Its totient is φ = 14376960.

The previous prime is 51485923. The next prime is 51485957. The reversal of 51485952 is 25958415.

It is a self number, because there is not a number n which added to its sum of digits gives 51485952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51485957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327858 + ... + 328014.

Almost surely, 2^51485952 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 51485952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80092096).

51485952 is an abundant number, since it is smaller than the sum of its proper divisors (108698240).

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

51485952 is a wasteful number, since it uses less digits than its factorization.

51485952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 230 counting only the distinct ones).

The product of its digits is 72000, while the sum is 39.

The square root of 51485952 is about 7175.3712099096. The cubic root of 51485952 is about 372.0171110178.

The spelling of 51485952 in words is "fifty-one million, four hundred eighty-five thousand, nine hundred fifty-two".