75455250 has 128 divisors (see below), whose sum is σ = 207567360. Its totient is φ = 18144000.

The previous prime is 75455221. The next prime is 75455267. The reversal of 75455250 is 5255457.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 692196 + ... + 692304.

It is an arithmetic number, because the mean of its divisors is an integer number (1621620).

Almost surely, 2^75455250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75455250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103783680).

75455250 is an abundant number, since it is smaller than the sum of its proper divisors (132112110).

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

75455250 is a wasteful number, since it uses less digits than its factorization.

75455250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 75455250 is about 8686.4981436710. The cubic root of 75455250 is about 422.5678847074.

The spelling of 75455250 in words is "seventy-five million, four hundred fifty-five thousand, two hundred fifty".