255464020 has 24 divisors (see below), whose sum is σ = 613113984. Its totient is φ = 87587616.

The previous prime is 255463991. The next prime is 255464029. The reversal of 255464020 is 20464552.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 255464020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255464029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912232 + ... + 912511.

It is an arithmetic number, because the mean of its divisors is an integer number (25546416).

Almost surely, 2^255464020 is an apocalyptic number.

255464020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255464020 is an abundant number, since it is smaller than the sum of its proper divisors (357649964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255464020 is a wasteful number, since it uses less digits than its factorization.

255464020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824759 (or 1824757 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 255464020 is about 15983.2418488866. The cubic root of 255464020 is about 634.5169782438.

The spelling of 255464020 in words is "two hundred fifty-five million, four hundred sixty-four thousand, twenty".