75345554 has 8 divisors (see below), whose sum is σ = 113110668. Its totient is φ = 37642000.

The previous prime is 75345499. The next prime is 75345607. The reversal of 75345554 is 45554357.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75290329 + 55225 = 8677^2 + 235^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12197 + ... + 17304.

Almost surely, 2^75345554 is an apocalyptic number.

75345554 is a deficient number, since it is larger than the sum of its proper divisors (37765114).

75345554 is a wasteful number, since it uses less digits than its factorization.

75345554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30780.

The product of its digits is 210000, while the sum is 38.

The square root of 75345554 is about 8680.1816801263. The cubic root of 75345554 is about 422.3630105697.

The spelling of 75345554 in words is "seventy-five million, three hundred forty-five thousand, five hundred fifty-four".