75516090 has 64 divisors (see below), whose sum is σ = 196269696. Its totient is φ = 18484992.

The previous prime is 75516073. The next prime is 75516121. The reversal of 75516090 is 9061557.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88104 + ... + 88956.

It is an arithmetic number, because the mean of its divisors is an integer number (3066714).

Almost surely, 2^75516090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75516090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98134848).

75516090 is an abundant number, since it is smaller than the sum of its proper divisors (120753606).

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

75516090 is a wasteful number, since it uses less digits than its factorization.

75516090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 75516090 is about 8689.9994246260. Note that the first 3 decimals coincide. The cubic root of 75516090 is about 422.6814271643.

The spelling of 75516090 in words is "seventy-five million, five hundred sixteen thousand, ninety".