2053451132545 has 4 divisors (see below), whose sum is σ = 2464141359060. Its totient is φ = 1642760906032.

The previous prime is 2053451132533. The next prime is 2053451132561. The reversal of 2053451132545 is 5452311543502.

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 1508111714704 + 545339417841 = 1228052^2 + 738471^2 .

It is a cyclic number.

It is not a de Polignac number, because 2053451132545 - 2¹⁷ = 2053451001473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2053451132498 and 2053451132507.

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, 205345113250 + ... + 205345113259.

It is an arithmetic number, because the mean of its divisors is an integer number (616035339765).

Almost surely, 2^{2053451132545} is an apocalyptic number.

It is an amenable number.

2053451132545 is a deficient number, since it is larger than the sum of its proper divisors (410690226515).

2053451132545 is an equidigital number, since it uses as much as digits as its factorization.

2053451132545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410690226514.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 2053451132545 in words is "two trillion, fifty-three billion, four hundred fifty-one million, one hundred thirty-two thousand, five hundred forty-five".