75075620 has 12 divisors (see below), whose sum is σ = 157658844. Its totient is φ = 30030240.

The previous prime is 75075619. The next prime is 75075641. The reversal of 75075620 is 2657057.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20286016 + 54789604 = 4504^2 + 7402^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876871 + ... + 1876910.

It is an arithmetic number, because the mean of its divisors is an integer number (13138237).

Almost surely, 2^75075620 is an apocalyptic number.

It is an amenable number.

75075620 is an abundant number, since it is smaller than the sum of its proper divisors (82583224).

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

75075620 is a wasteful number, since it uses less digits than its factorization.

75075620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753790 (or 3753788 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 75075620 is about 8664.6188606309. The cubic root of 75075620 is about 421.8580192159.

The spelling of 75075620 in words is "seventy-five million, seventy-five thousand, six hundred twenty".