74272255 has 4 divisors (see below), whose sum is σ = 89126712. Its totient is φ = 59417800.

The previous prime is 74272243. The next prime is 74272333. The reversal of 74272255 is 55227247.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55227247 = 881 ⋅62687.

It is not a de Polignac number, because 74272255 - 2⁷ = 74272127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74272255.

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, 7427221 + ... + 7427230.

It is an arithmetic number, because the mean of its divisors is an integer number (22281678).

Almost surely, 2^74272255 is an apocalyptic number.

74272255 is a deficient number, since it is larger than the sum of its proper divisors (14854457).

74272255 is a wasteful number, since it uses less digits than its factorization.

74272255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14854456.

The product of its digits is 39200, while the sum is 34.

The square root of 74272255 is about 8618.1352391338. The cubic root of 74272255 is about 420.3478882555.

The spelling of 74272255 in words is "seventy-four million, two hundred seventy-two thousand, two hundred fifty-five".