1255435001 has 4 divisors (see below), whose sum is σ = 1282146432. Its totient is φ = 1228723572.

The previous prime is 1255434997. The next prime is 1255435007. The reversal of 1255435001 is 1005345521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1255435001 - 2² = 1255434997 is a prime.

It is a super-2 number, since 2×1255435001² = 3152234083471740002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255435007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13355645 + ... + 13355738.

It is an arithmetic number, because the mean of its divisors is an integer number (320536608).

Almost surely, 2^1255435001 is an apocalyptic number.

It is an amenable number.

1255435001 is a deficient number, since it is larger than the sum of its proper divisors (26711431).

1255435001 is an equidigital number, since it uses as much as digits as its factorization.

1255435001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26711430.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1255435001 is about 35432.1182121532. The cubic root of 1255435001 is about 1078.7763349905.

The spelling of 1255435001 in words is "one billion, two hundred fifty-five million, four hundred thirty-five thousand, one".