75350520 has 128 divisors (see below), whose sum is σ = 287078400. Its totient is φ = 17221248.

The previous prime is 75350503. The next prime is 75350531. The reversal of 75350520 is 2505357.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 2577 + ... + 12543.

It is an arithmetic number, because the mean of its divisors is an integer number (2242800).

Almost surely, 2^75350520 is an apocalyptic number.

75350520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75350520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143539200).

75350520 is an abundant number, since it is smaller than the sum of its proper divisors (211727880).

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

75350520 is a wasteful number, since it uses less digits than its factorization.

75350520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994 (or 9984 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 75350520 is about 8680.4677293335. The cubic root of 75350520 is about 422.3722896336.

Adding to 75350520 its reverse (2505357), we get a palindrome (77855877).

The spelling of 75350520 in words is "seventy-five million, three hundred fifty thousand, five hundred twenty".