255361400 has 96 divisors (see below), whose sum is σ = 682992000. Its totient is φ = 86977920.

The previous prime is 255361397. The next prime is 255361423. The reversal of 255361400 is 4163552.

It is a self number, because there is not a number n which added to its sum of digits gives 255361400.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 250091 + ... + 251109.

It is an arithmetic number, because the mean of its divisors is an integer number (7114500).

Almost surely, 2^255361400 is an apocalyptic number.

255361400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255361400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341496000).

255361400 is an abundant number, since it is smaller than the sum of its proper divisors (427630600).

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

255361400 is a wasteful number, since it uses less digits than its factorization.

255361400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 255361400 is about 15980.0312890808. The cubic root of 255361400 is about 634.4320049561.

The spelling of 255361400 in words is "two hundred fifty-five million, three hundred sixty-one thousand, four hundred".