75250522 has 4 divisors (see below), whose sum is σ = 112875786. Its totient is φ = 37625260.

The previous prime is 75250519. The next prime is 75250537. The reversal of 75250522 is 22505257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22505257 = 1601 ⋅14057.

It can be written as a sum of positive squares in only one way, i.e., 39955041 + 35295481 = 6321^2 + 5941^2 .

It is a super-2 number, since 2×75250522² = 11325282122544968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18812629 + ... + 18812632.

Almost surely, 2^75250522 is an apocalyptic number.

75250522 is a deficient number, since it is larger than the sum of its proper divisors (37625264).

75250522 is a wasteful number, since it uses less digits than its factorization.

75250522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37625263.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 75250522 is about 8674.7058739764. The cubic root of 75250522 is about 422.1853628899.

Adding to 75250522 its reverse (22505257), we get a palindrome (97755779).

The spelling of 75250522 in words is "seventy-five million, two hundred fifty thousand, five hundred twenty-two".