75002222 has 4 divisors (see below), whose sum is σ = 112503336. Its totient is φ = 37501110.

The previous prime is 75002209. The next prime is 75002227. The reversal of 75002222 is 22220057.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 75002194 and 75002203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75002227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18750554 + ... + 18750557.

It is an arithmetic number, because the mean of its divisors is an integer number (28125834).

Almost surely, 2^75002222 is an apocalyptic number.

75002222 is a deficient number, since it is larger than the sum of its proper divisors (37501114).

75002222 is a wasteful number, since it uses less digits than its factorization.

75002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37501113.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 75002222 is about 8660.3823241240. The cubic root of 75002222 is about 421.7204972928.

Adding to 75002222 its reverse (22220057), we get a palindrome (97222279).

The spelling of 75002222 in words is "seventy-five million, two thousand, two hundred twenty-two".