1258310355553 has 4 divisors (see below), whose sum is σ = 1332328611780. Its totient is φ = 1184292099328.

The previous prime is 1258310355551. The next prime is 1258310355571. The reversal of 1258310355553 is 3555530138521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 754938552384 + 503371803169 = 868872^2 + 709487^2 .

It is a cyclic number.

It is not a de Polignac number, because 1258310355553 - 2¹ = 1258310355551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1258310355551) 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, 37009128088 + ... + 37009128121.

It is an arithmetic number, because the mean of its divisors is an integer number (333082152945).

Almost surely, 2^{1258310355553} is an apocalyptic number.

It is an amenable number.

1258310355553 is a deficient number, since it is larger than the sum of its proper divisors (74018256227).

1258310355553 is an equidigital number, since it uses as much as digits as its factorization.

1258310355553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74018256226.

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 1258310355553 in words is "one trillion, two hundred fifty-eight billion, three hundred ten million, three hundred fifty-five thousand, five hundred fifty-three".