75150756 has 54 divisors (see below), whose sum is σ = 194657190. Its totient is φ = 24446016.

The previous prime is 75150749. The next prime is 75150769. The reversal of 75150756 is 65705157.

It can be written as a sum of positive squares in only one way, i.e., 48525156 + 26625600 = 6966^2 + 5160^2 .

It is a super-2 number, since 2×75150756² = 11295272254743072, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 75150756.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 66000 + ... + 67128.

Almost surely, 2^75150756 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 75150756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97328595).

75150756 is an abundant number, since it is smaller than the sum of its proper divisors (119506434).

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

75150756 is a wasteful number, since it uses less digits than its factorization.

75150756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 75150756 is about 8668.9535700683. The cubic root of 75150756 is about 421.9987047271.

The spelling of 75150756 in words is "seventy-five million, one hundred fifty thousand, seven hundred fifty-six".