75074455 has 4 divisors (see below), whose sum is σ = 90089352. Its totient is φ = 60059560.

The previous prime is 75074423. The next prime is 75074473. The reversal of 75074455 is 55447057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55447057 = 127 ⋅436591.

It is not a de Polignac number, because 75074455 - 2⁵ = 75074423 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 7507441 + ... + 7507450.

It is an arithmetic number, because the mean of its divisors is an integer number (22522338).

Almost surely, 2^75074455 is an apocalyptic number.

75074455 is a deficient number, since it is larger than the sum of its proper divisors (15014897).

75074455 is a wasteful number, since it uses less digits than its factorization.

75074455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15014896.

The product of its (nonzero) digits is 98000, while the sum is 37.

The square root of 75074455 is about 8664.5516329467. The cubic root of 75074455 is about 421.8558371177.

The spelling of 75074455 in words is "seventy-five million, seventy-four thousand, four hundred fifty-five".