255671400 has 96 divisors (see below), whose sum is σ = 800618400. Its totient is φ = 67488000.

The previous prime is 255671389. The next prime is 255671411. The reversal of 255671400 is 4176552.

It is an interprime number because it is at equal distance from previous prime (255671389) and next prime (255671411).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58491 + ... + 62709.

It is an arithmetic number, because the mean of its divisors is an integer number (8339775).

Almost surely, 2^255671400 is an apocalyptic number.

255671400 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 255671400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400309200).

255671400 is an abundant number, since it is smaller than the sum of its proper divisors (544947000).

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

255671400 is a wasteful number, since it uses less digits than its factorization.

255671400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339 (or 4330 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 255671400 is about 15989.7279526576. The cubic root of 255671400 is about 634.6886273874.

The spelling of 255671400 in words is "two hundred fifty-five million, six hundred seventy-one thousand, four hundred".