75520836 has 120 divisors (see below), whose sum is σ = 208592384. Its totient is φ = 23794560.

The previous prime is 75520793. The next prime is 75520853. The reversal of 75520836 is 63802557.

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 75520836.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 733161 + ... + 733263.

Almost surely, 2^75520836 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 75520836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104296192).

75520836 is an abundant number, since it is smaller than the sum of its proper divisors (133071548).

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

75520836 is a wasteful number, since it uses less digits than its factorization.

75520836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 75520836 is about 8690.2724928508. The cubic root of 75520836 is about 422.6902818072.

The spelling of 75520836 in words is "seventy-five million, five hundred twenty thousand, eight hundred thirty-six".