1255425 has 24 divisors (see below), whose sum is σ = 2187360. Its totient is φ = 633600.

The previous prime is 1255421. The next prime is 1255427. The reversal of 1255425 is 5245521.

It is a happy number.

It is not a de Polignac number, because 1255425 - 2² = 1255421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255395 and 1255404.

It is not an unprimeable number, because it can be changed into a prime (1255421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 985 + ... + 1865.

It is an arithmetic number, because the mean of its divisors is an integer number (91140).

It is a Proth number, since it is equal to 613 ⋅ 2¹¹ + 1 and 613 < 2¹¹.

2^1255425 is an apocalyptic number.

1255425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255425 is a deficient number, since it is larger than the sum of its proper divisors (931935).

1255425 is a wasteful number, since it uses less digits than its factorization.

1255425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 908 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 1255425 is about 1120.4574958471. The cubic root of 1255425 is about 107.8773470413.

The spelling of 1255425 in words is "one million, two hundred fifty-five thousand, four hundred twenty-five".