75512216 has 32 divisors (see below), whose sum is σ = 154766640. Its totient is φ = 34328448.

The previous prime is 75512209. The next prime is 75512219. The reversal of 75512216 is 61221557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75512219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550 + ... + 12386.

Almost surely, 2^75512216 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 75512216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77383320).

75512216 is an abundant number, since it is smaller than the sum of its proper divisors (79254424).

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

75512216 is a wasteful number, since it uses less digits than its factorization.

75512216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10923 (or 10919 counting only the distinct ones).

The product of its digits is 4200, while the sum is 29.

The square root of 75512216 is about 8689.7765218675. The cubic root of 75512216 is about 422.6741991424.

The spelling of 75512216 in words is "seventy-five million, five hundred twelve thousand, two hundred sixteen".