75250770 has 128 divisors (see below), whose sum is σ = 215654400. Its totient is φ = 16793280.

The previous prime is 75250751. The next prime is 75250771. The reversal of 75250770 is 7705257.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75250771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 730539 + ... + 730641.

It is an arithmetic number, because the mean of its divisors is an integer number (1684800).

Almost surely, 2^75250770 is an apocalyptic number.

75250770 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 75250770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107827200).

75250770 is an abundant number, since it is smaller than the sum of its proper divisors (140403630).

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

75250770 is a wasteful number, since it uses less digits than its factorization.

75250770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 17150, while the sum is 33.

The square root of 75250770 is about 8674.7201683974. The cubic root of 75250770 is about 422.1858266822.

The spelling of 75250770 in words is "seventy-five million, two hundred fifty thousand, seven hundred seventy".