77225752 has 16 divisors (see below), whose sum is σ = 146153160. Its totient is φ = 38251584.

The previous prime is 77225719. The next prime is 77225761. The reversal of 77225752 is 25752277.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 44253 + ... + 45964.

Almost surely, 2^77225752 is an apocalyptic number.

It is an amenable number.

77225752 is a deficient number, since it is larger than the sum of its proper divisors (68927408).

77225752 is a wasteful number, since it uses less digits than its factorization.

77225752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90330 (or 90326 counting only the distinct ones).

The product of its digits is 68600, while the sum is 37.

The square root of 77225752 is about 8787.8183868353. The cubic root of 77225752 is about 425.8474477097.

It can be divided in two parts, 77225 and 752, that added together give a palindrome (77977).

The spelling of 77225752 in words is "seventy-seven million, two hundred twenty-five thousand, seven hundred fifty-two".