76552220 has 12 divisors (see below), whose sum is σ = 160759704. Its totient is φ = 30620880.

The previous prime is 76552219. The next prime is 76552261. The reversal of 76552220 is 2225567.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913786 + ... + 1913825.

It is an arithmetic number, because the mean of its divisors is an integer number (13396642).

Almost surely, 2^76552220 is an apocalyptic number.

It is an amenable number.

76552220 is an abundant number, since it is smaller than the sum of its proper divisors (84207484).

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

76552220 is a wasteful number, since it uses less digits than its factorization.

76552220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827620 (or 3827618 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 76552220 is about 8749.4125517088. The cubic root of 76552220 is about 424.6058075052.

Adding to 76552220 its reverse (2225567), we get a palindrome (78777787).

The spelling of 76552220 in words is "seventy-six million, five hundred fifty-two thousand, two hundred twenty".