75277332 has 54 divisors (see below), whose sum is σ = 206064222. Its totient is φ = 23160384.

The previous prime is 75277327. The next prime is 75277339. The reversal of 75277332 is 23377257.

It can be written as a sum of positive squares in 3 ways, for example, as 4356 + 75272976 = 66^2 + 8676^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75277339) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 103 + ... + 12270.

Almost surely, 2^75277332 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 75277332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103032111).

75277332 is an abundant number, since it is smaller than the sum of its proper divisors (130786890).

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

75277332 is a wasteful number, since it uses less digits than its factorization.

75277332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12409 (or 12391 counting only the distinct ones).

The product of its digits is 61740, while the sum is 36.

The square root of 75277332 is about 8676.2510337127. The cubic root of 75277332 is about 422.2354951917.

The spelling of 75277332 in words is "seventy-five million, two hundred seventy-seven thousand, three hundred thirty-two".