255451401 has 40 divisors (see below), whose sum is σ = 418045320. Its totient is φ = 154732032.

The previous prime is 255451379. The next prime is 255451421. The reversal of 255451401 is 104154552.

255451401 is a `hidden beast` number, since 255 + 4 + 5 + 1 + 401 = 666.

255451401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10497600 + 244953801 = 3240^2 + 15651^2 .

It is not a de Polignac number, because 255451401 - 2⁹ = 255450889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (255451421) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 36735 + ... + 43131.

It is an arithmetic number, because the mean of its divisors is an integer number (10451133).

Almost surely, 2^255451401 is an apocalyptic number.

It is an amenable number.

255451401 is a deficient number, since it is larger than the sum of its proper divisors (162593919).

255451401 is a wasteful number, since it uses less digits than its factorization.

255451401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455 (or 6446 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 255451401 is about 15982.8470867990. The cubic root of 255451401 is about 634.5065304561.

The spelling of 255451401 in words is "two hundred fifty-five million, four hundred fifty-one thousand, four hundred one".