255547001 has 4 divisors (see below), whose sum is σ = 256607604. Its totient is φ = 254486400.

The previous prime is 255546989. The next prime is 255547007. The reversal of 255547001 is 100745552.

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 148962025 + 106584976 = 12205^2 + 10324^2 .

It is a cyclic number.

It is not a de Polignac number, because 255547001 - 2²² = 251352697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255547007) 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, 529940 + ... + 530421.

It is an arithmetic number, because the mean of its divisors is an integer number (64151901).

Almost surely, 2^255547001 is an apocalyptic number.

It is an amenable number.

255547001 is a deficient number, since it is larger than the sum of its proper divisors (1060603).

255547001 is a wasteful number, since it uses less digits than its factorization.

255547001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060602.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 255547001 is about 15985.8375132490. The cubic root of 255547001 is about 634.5856730492.

The spelling of 255547001 in words is "two hundred fifty-five million, five hundred forty-seven thousand, one".