75053540 has 12 divisors (see below), whose sum is σ = 157612476. Its totient is φ = 30021408.

The previous prime is 75053507. The next prime is 75053543. The reversal of 75053540 is 4535057.

It can be written as a sum of positive squares in 2 ways, for example, as 56460196 + 18593344 = 7514^2 + 4312^2 .

It is not an unprimeable number, because it can be changed into a prime (75053543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876319 + ... + 1876358.

It is an arithmetic number, because the mean of its divisors is an integer number (13134373).

Almost surely, 2^75053540 is an apocalyptic number.

It is an amenable number.

75053540 is an abundant number, since it is smaller than the sum of its proper divisors (82558936).

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

75053540 is a wasteful number, since it uses less digits than its factorization.

75053540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752686 (or 3752684 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 75053540 is about 8663.3446197182. The cubic root of 75053540 is about 421.8166585258.

Adding to 75053540 its reverse (4535057), we get a palindrome (79588597).

The spelling of 75053540 in words is "seventy-five million, fifty-three thousand, five hundred forty".