75272222 has 8 divisors (see below), whose sum is σ = 114593736. Its totient is φ = 37074312.

The previous prime is 75272221. The next prime is 75272251. The reversal of 75272222 is 22227257.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75272221) 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, 280733 + ... + 281000.

It is an arithmetic number, because the mean of its divisors is an integer number (14324217).

Almost surely, 2^75272222 is an apocalyptic number.

75272222 is a deficient number, since it is larger than the sum of its proper divisors (39321514).

75272222 is a wasteful number, since it uses less digits than its factorization.

75272222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561802.

The product of its digits is 7840, while the sum is 29.

The square root of 75272222 is about 8675.9565466869. The cubic root of 75272222 is about 422.2259408670.

Adding to 75272222 its reverse (22227257), we get a palindrome (97499479).

The spelling of 75272222 in words is "seventy-five million, two hundred seventy-two thousand, two hundred twenty-two".