75252229 has 8 divisors (see below), whose sum is σ = 81135320. Its totient is φ = 69382656.

The previous prime is 75252197. The next prime is 75252241. The reversal of 75252229 is 92225257.

It can be written as a sum of positive squares in 4 ways, for example, as 4524129 + 70728100 = 2127^2 + 8410^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75252229 - 2⁵ = 75252197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75252194 and 75252203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75252299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10249 + ... + 15985.

It is an arithmetic number, because the mean of its divisors is an integer number (10141915).

Almost surely, 2^75252229 is an apocalyptic number.

It is an amenable number.

75252229 is a deficient number, since it is larger than the sum of its proper divisors (5883091).

75252229 is a wasteful number, since it uses less digits than its factorization.

75252229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6759.

The product of its digits is 25200, while the sum is 34.

The square root of 75252229 is about 8674.8042629214. The cubic root of 75252229 is about 422.1885551821.

The spelling of 75252229 in words is "seventy-five million, two hundred fifty-two thousand, two hundred twenty-nine".