255120501 has 8 divisors (see below), whose sum is σ = 340260480. Its totient is φ = 170030432.

The previous prime is 255120499. The next prime is 255120517. The reversal of 255120501 is 105021552.

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

It is a cyclic number.

It is not a de Polignac number, because 255120501 - 2¹ = 255120499 is a prime.

It is a super-3 number, since 3×255120501³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255120571) 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, 1780 + ... + 22658.

It is an arithmetic number, because the mean of its divisors is an integer number (42532560).

Almost surely, 2^255120501 is an apocalyptic number.

It is an amenable number.

255120501 is a deficient number, since it is larger than the sum of its proper divisors (85139979).

255120501 is a wasteful number, since it uses less digits than its factorization.

255120501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24955.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 255120501 is about 15972.4920097022. The cubic root of 255120501 is about 634.2324418791.

The spelling of 255120501 in words is "two hundred fifty-five million, one hundred twenty thousand, five hundred one".