75022445 has 8 divisors (see below), whose sum is σ = 95322744. Its totient is φ = 56487424.

The previous prime is 75022397. The next prime is 75022447. The reversal of 75022445 is 54422057.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6646084 + 68376361 = 2578^2 + 8269^2 .

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 75022445 - 2²⁰ = 73973869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75022447) 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, 441224 + ... + 441393.

It is an arithmetic number, because the mean of its divisors is an integer number (11915343).

Almost surely, 2^75022445 is an apocalyptic number.

It is an amenable number.

75022445 is a deficient number, since it is larger than the sum of its proper divisors (20300299).

75022445 is a wasteful number, since it uses less digits than its factorization.

75022445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882639.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 75022445 is about 8661.5498035860. The cubic root of 75022445 is about 421.7583970021.

The spelling of 75022445 in words is "seventy-five million, twenty-two thousand, four hundred forty-five".