1255700 has 36 divisors (see below), whose sum is σ = 2825340. Its totient is φ = 483840.

The previous prime is 1255693. The next prime is 1255721. The reversal of 1255700 is 75521.

1255700 = 212² + 213² + ... + 236².

It can be written as a sum of positive squares in 6 ways, for example, as 148996 + 1106704 = 386^2 + 1052^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2684 + ... + 3116.

2^1255700 is an apocalyptic number.

1255700 is a gapful number since it is divisible by the number (10) 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 1255700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1412670).

1255700 is an abundant number, since it is smaller than the sum of its proper divisors (1569640).

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

1255700 is a wasteful number, since it uses less digits than its factorization.

1255700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 1255700 is about 1120.5802068571. The cubic root of 1255700 is about 107.8852232863.

The spelling of 1255700 in words is "one million, two hundred fifty-five thousand, seven hundred".