75220090 has 16 divisors (see below), whose sum is σ = 147705120. Its totient is φ = 27352720.

The previous prime is 75220073. The next prime is 75220109. The reversal of 75220090 is 9002257.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341800 + ... + 342019.

It is an arithmetic number, because the mean of its divisors is an integer number (9231570).

Almost surely, 2^75220090 is an apocalyptic number.

75220090 is a deficient number, since it is larger than the sum of its proper divisors (72485030).

75220090 is a wasteful number, since it uses less digits than its factorization.

75220090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683837.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 75220090 is about 8672.9516313652. The cubic root of 75220090 is about 422.1284433410.

The spelling of 75220090 in words is "seventy-five million, two hundred twenty thousand, ninety".