75909956 has 12 divisors (see below), whose sum is σ = 132963180. Its totient is φ = 37920480.

The previous prime is 75909949. The next prime is 75909961. The reversal of 75909956 is 65990957.

It can be written as a sum of positive squares in 2 ways, for example, as 46922500 + 28987456 = 6850^2 + 5384^2 .

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, 3311 + ... + 12758.

It is an arithmetic number, because the mean of its divisors is an integer number (11080265).

Almost surely, 2^75909956 is an apocalyptic number.

It is an amenable number.

75909956 is a deficient number, since it is larger than the sum of its proper divisors (57053224).

75909956 is a wasteful number, since it uses less digits than its factorization.

75909956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17254 (or 17252 counting only the distinct ones).

The product of its (nonzero) digits is 765450, while the sum is 50.

The square root of 75909956 is about 8712.6319789143. The cubic root of 75909956 is about 423.4150070095.

The spelling of 75909956 in words is "seventy-five million, nine hundred nine thousand, nine hundred fifty-six".