1275413007553 has 4 divisors (see below), whose sum is σ = 1275415372800. Its totient is φ = 1275410642308.

The previous prime is 1275413007551. The next prime is 1275413007593. The reversal of 1275413007553 is 3557003145721.

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 1275413007553 - 2¹ = 1275413007551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275413007551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64848 + ... + 1598446.

It is an arithmetic number, because the mean of its divisors is an integer number (318853843200).

Almost surely, 2^{1275413007553} is an apocalyptic number.

It is an amenable number.

1275413007553 is a deficient number, since it is larger than the sum of its proper divisors (2365247).

1275413007553 is an equidigital number, since it uses as much as digits as its factorization.

1275413007553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365246.

The product of its (nonzero) digits is 441000, while the sum is 43.

The spelling of 1275413007553 in words is "one trillion, two hundred seventy-five billion, four hundred thirteen million, seven thousand, five hundred fifty-three".