73663552 has 56 divisors (see below), whose sum is σ = 152339040. Its totient is φ = 35312640.

The previous prime is 73663531. The next prime is 73663553. The reversal of 73663552 is 25536637.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73663553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175599 + ... + 176017.

It is an arithmetic number, because the mean of its divisors is an integer number (2720340).

Almost surely, 2^73663552 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 73663552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76169520).

73663552 is an abundant number, since it is smaller than the sum of its proper divisors (78675488).

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

73663552 is a wasteful number, since it uses less digits than its factorization.

73663552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 529 counting only the distinct ones).

The product of its digits is 113400, while the sum is 37.

The square root of 73663552 is about 8582.7473456930. The cubic root of 73663552 is about 419.1964075212.

The spelling of 73663552 in words is "seventy-three million, six hundred sixty-three thousand, five hundred fifty-two".