63520632 has 128 divisors (see below), whose sum is σ = 206553600. Its totient is φ = 17708544.

The previous prime is 63520609. The next prime is 63520651. The reversal of 63520632 is 23602536.

63520632 is a `hidden beast` number, since 6 + 3 + 5 + 20 + 632 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 63520596 and 63520605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64528 + ... + 65504.

It is an arithmetic number, because the mean of its divisors is an integer number (1613700).

Almost surely, 2^63520632 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 63520632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103276800).

63520632 is an abundant number, since it is smaller than the sum of its proper divisors (143032968).

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

63520632 is a wasteful number, since it uses less digits than its factorization.

63520632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 63520632 is about 7969.9831869333. The cubic root of 63520632 is about 398.9988128180.

The spelling of 63520632 in words is "sixty-three million, five hundred twenty thousand, six hundred thirty-two".