51703632 has 120 divisors (see below), whose sum is σ = 153900864. Its totient is φ = 16169472.

The previous prime is 51703627. The next prime is 51703633. The reversal of 51703632 is 23630715.

It is a happy number.

51703632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×51703632³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51703596 and 51703605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51703633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221788 + ... + 222020.

Almost surely, 2^51703632 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 51703632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76950432).

51703632 is an abundant number, since it is smaller than the sum of its proper divisors (102197232).

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

51703632 is a wasteful number, since it uses less digits than its factorization.

51703632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 51703632 is about 7190.5237639549. The cubic root of 51703632 is about 372.5406636989.

The spelling of 51703632 in words is "fifty-one million, seven hundred three thousand, six hundred thirty-two".