72768552 has 32 divisors (see below), whose sum is σ = 182217600. Its totient is φ = 24216704.

The previous prime is 72768533. The next prime is 72768571. The reversal of 72768552 is 25586727.

It is an interprime number because it is at equal distance from previous prime (72768533) and next prime (72768571).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15148 + ... + 19364.

It is an arithmetic number, because the mean of its divisors is an integer number (5694300).

Almost surely, 2^72768552 is an apocalyptic number.

It is an amenable number.

72768552 is an abundant number, since it is smaller than the sum of its proper divisors (109449048).

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

72768552 is a wasteful number, since it uses less digits than its factorization.

72768552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945 (or 4941 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 72768552 is about 8530.4485227918. The cubic root of 72768552 is about 417.4917626591.

The spelling of 72768552 in words is "seventy-two million, seven hundred sixty-eight thousand, five hundred fifty-two".