75780552 has 32 divisors (see below), whose sum is σ = 190152000. Its totient is φ = 25166784.

The previous prime is 75780539. The next prime is 75780559. The reversal of 75780552 is 25508757.

It is a super-2 number, since 2×75780552² = 11485384122849408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75780552.

It is not an unprimeable number, because it can be changed into a prime (75780559) 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, 949 + ... + 12347.

It is an arithmetic number, because the mean of its divisors is an integer number (5942250).

Almost surely, 2^75780552 is an apocalyptic number.

It is an amenable number.

75780552 is an abundant number, since it is smaller than the sum of its proper divisors (114371448).

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

75780552 is a wasteful number, since it uses less digits than its factorization.

75780552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11685 (or 11681 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 75780552 is about 8705.2025823642. The cubic root of 75780552 is about 423.1742710883.

The spelling of 75780552 in words is "seventy-five million, seven hundred eighty thousand, five hundred fifty-two".