75223449 has 12 divisors (see below), whose sum is σ = 124178496. Its totient is φ = 42984792.

The previous prime is 75223441. The next prime is 75223457. The reversal of 75223449 is 94432257.

It is an interprime number because it is at equal distance from previous prime (75223441) and next prime (75223457).

It is not a de Polignac number, because 75223449 - 2³ = 75223441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75223441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 596949 + ... + 597074.

It is an arithmetic number, because the mean of its divisors is an integer number (10348208).

Almost surely, 2^75223449 is an apocalyptic number.

It is an amenable number.

75223449 is a deficient number, since it is larger than the sum of its proper divisors (48955047).

75223449 is a wasteful number, since it uses less digits than its factorization.

75223449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194036 (or 1194033 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 75223449 is about 8673.1452772336. The cubic root of 75223449 is about 422.1347267170.

The spelling of 75223449 in words is "seventy-five million, two hundred twenty-three thousand, four hundred forty-nine".