1553045454001 has 4 divisors (see below), whose sum is σ = 1578505215604. Its totient is φ = 1527585692400.

The previous prime is 1553045453987. The next prime is 1553045454013. The reversal of 1553045454001 is 1004545403551.

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 543794155776 + 1009251298225 = 737424^2 + 1004615^2 .

It is not a de Polignac number, because 1553045454001 - 2¹⁵ = 1553045421233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553045454071) 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, 12729880710 + ... + 12729880831.

It is an arithmetic number, because the mean of its divisors is an integer number (394626303901).

Almost surely, 2^{1553045454001} is an apocalyptic number.

It is an amenable number.

1553045454001 is a deficient number, since it is larger than the sum of its proper divisors (25459761603).

1553045454001 is an equidigital number, since it uses as much as digits as its factorization.

1553045454001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25459761602.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 1553045454001 in words is "one trillion, five hundred fifty-three billion, forty-five million, four hundred fifty-four thousand, one".