1255005140435 has 4 divisors (see below), whose sum is σ = 1506006168528. Its totient is φ = 1004004112344.

The previous prime is 1255005140429. The next prime is 1255005140461. The reversal of 1255005140435 is 5340415005521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1255005140435 - 2⁴ = 1255005140419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1255005140395 and 1255005140404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125500514039 + ... + 125500514048.

It is an arithmetic number, because the mean of its divisors is an integer number (376501542132).

Almost surely, 2^{1255005140435} is an apocalyptic number.

1255005140435 is a deficient number, since it is larger than the sum of its proper divisors (251001028093).

1255005140435 is an equidigital number, since it uses as much as digits as its factorization.

1255005140435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251001028092.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 1255005140435 in words is "one trillion, two hundred fifty-five billion, five million, one hundred forty thousand, four hundred thirty-five".