1355256425 has 6 divisors (see below), whose sum is σ = 1680517998. Its totient is φ = 1084205120.

The previous prime is 1355256407. The next prime is 1355256437. The reversal of 1355256425 is 5246525531.

It can be written as a sum of positive squares in 3 ways, for example, as 415711321 + 939545104 = 20389^2 + 30652^2 .

It is not a de Polignac number, because 1355256425 - 2⁶ = 1355256361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27105104 + ... + 27105153.

It is an arithmetic number, because the mean of its divisors is an integer number (280086333).

Almost surely, 2^1355256425 is an apocalyptic number.

It is an amenable number.

1355256425 is a deficient number, since it is larger than the sum of its proper divisors (325261573).

1355256425 is an equidigital number, since it uses as much as digits as its factorization.

1355256425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54210267 (or 54210262 counting only the distinct ones).

The product of its digits is 180000, while the sum is 38.

The square root of 1355256425 is about 36813.8075319574. The cubic root of 1355256425 is about 1106.6420241263.

The spelling of 1355256425 in words is "one billion, three hundred fifty-five million, two hundred fifty-six thousand, four hundred twenty-five".