255237473 has 4 divisors (see below), whose sum is σ = 270251460. Its totient is φ = 240223488.

The previous prime is 255237467. The next prime is 255237487. The reversal of 255237473 is 374732552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141324544 + 113912929 = 11888^2 + 10673^2 .

It is a cyclic number.

It is not a de Polignac number, because 255237473 - 2¹⁴ = 255221089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255237373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7506968 + ... + 7507001.

It is an arithmetic number, because the mean of its divisors is an integer number (67562865).

Almost surely, 2^255237473 is an apocalyptic number.

It is an amenable number.

255237473 is a deficient number, since it is larger than the sum of its proper divisors (15013987).

255237473 is a wasteful number, since it uses less digits than its factorization.

255237473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15013986.

The product of its digits is 176400, while the sum is 38.

The square root of 255237473 is about 15976.1532604066. The cubic root of 255237473 is about 634.3293583056.

The spelling of 255237473 in words is "two hundred fifty-five million, two hundred thirty-seven thousand, four hundred seventy-three".