75228481 has 16 divisors (see below), whose sum is σ = 79289280. Its totient is φ = 71307520.

The previous prime is 75228443. The next prime is 75228493. The reversal of 75228481 is 18482257.

It is a cyclic number.

It is not a de Polignac number, because 75228481 - 2⁹ = 75227969 is a prime.

It is a super-2 number, since 2×75228481² = 11318648707134722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75228481.

It is not an unprimeable number, because it can be changed into a prime (75228431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331290 + ... + 331516.

It is an arithmetic number, because the mean of its divisors is an integer number (4955580).

Almost surely, 2^75228481 is an apocalyptic number.

It is an amenable number.

75228481 is a deficient number, since it is larger than the sum of its proper divisors (4060799).

75228481 is a wasteful number, since it uses less digits than its factorization.

75228481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464.

The product of its digits is 35840, while the sum is 37.

The square root of 75228481 is about 8673.4353632226. The cubic root of 75228481 is about 422.1441392722.

The spelling of 75228481 in words is "seventy-five million, two hundred twenty-eight thousand, four hundred eighty-one".