75053720 has 32 divisors (see below), whose sum is σ = 192996000. Its totient is φ = 25732608.

The previous prime is 75053717. The next prime is 75053747. The reversal of 75053720 is 2735057.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 133745 + ... + 134304.

It is an arithmetic number, because the mean of its divisors is an integer number (6031125).

Almost surely, 2^75053720 is an apocalyptic number.

75053720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75053720 is an abundant number, since it is smaller than the sum of its proper divisors (117942280).

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

75053720 is a wasteful number, since it uses less digits than its factorization.

75053720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268067 (or 268063 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 29.

The square root of 75053720 is about 8663.3550083094. The cubic root of 75053720 is about 421.8169957381.

Adding to 75053720 its reverse (2735057), we get a palindrome (77788777).

The spelling of 75053720 in words is "seventy-five million, fifty-three thousand, seven hundred twenty".