255132921 has 8 divisors (see below), whose sum is σ = 343298560. Its totient is φ = 168527952.

The previous prime is 255132907. The next prime is 255132947. The reversal of 255132921 is 129231552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-255132921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255132221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389785 + ... + 390438.

It is an arithmetic number, because the mean of its divisors is an integer number (42912320).

Almost surely, 2^255132921 is an apocalyptic number.

It is an amenable number.

255132921 is a deficient number, since it is larger than the sum of its proper divisors (88165639).

255132921 is a wasteful number, since it uses less digits than its factorization.

255132921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780335.

The product of its digits is 5400, while the sum is 30.

The square root of 255132921 is about 15972.8807984033. The cubic root of 255132921 is about 634.2427337988.

The spelling of 255132921 in words is "two hundred fifty-five million, one hundred thirty-two thousand, nine hundred twenty-one".