75031250 has 70 divisors (see below), whose sum is σ = 164118993. Its totient is φ = 25725000.

The previous prime is 75031241. The next prime is 75031261. The reversal of 75031250 is 5213057.

It can be written as a sum of positive squares in 4 ways, for example, as 12794929 + 62236321 = 3577^2 + 7889^2 .

It is a tau number, because it is divible by the number of its divisors (70).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6125.

It is a Duffinian number.

It is an unprimeable number.

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 34 ways as a sum of consecutive naturals, for example, 10718747 + ... + 10718753.

Almost surely, 2^75031250 is an apocalyptic number.

75031250 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75031250 is an abundant number, since it is smaller than the sum of its proper divisors (89087743).

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

75031250 is an frugal number, since it uses more digits than its factorization.

75031250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 75031250 is about 8662.0580695352. The cubic root of 75031250 is about 421.7748962307.

The spelling of 75031250 in words is "seventy-five million, thirty-one thousand, two hundred fifty".