2053574213545 has 4 divisors (see below), whose sum is σ = 2464289056260. Its totient is φ = 1642859370832.

The previous prime is 2053574213543. The next prime is 2053574213569. The reversal of 2053574213545 is 5453124753502.

It is a happy number.

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 1641071167849 + 412503045696 = 1281043^2 + 642264^2 .

It is a cyclic number.

It is not a de Polignac number, because 2053574213545 - 2¹ = 2053574213543 is a prime.

It is a super-2 number, since 2×2053574213545² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2053574213495 and 2053574213504.

It is not an unprimeable number, because it can be changed into a prime (2053574213543) 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, 205357421350 + ... + 205357421359.

It is an arithmetic number, because the mean of its divisors is an integer number (616072264065).

Almost surely, 2^{2053574213545} is an apocalyptic number.

It is an amenable number.

2053574213545 is a deficient number, since it is larger than the sum of its proper divisors (410714842715).

2053574213545 is an equidigital number, since it uses as much as digits as its factorization.

2053574213545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410714842714.

The product of its (nonzero) digits is 2520000, while the sum is 46.

The spelling of 2053574213545 in words is "two trillion, fifty-three billion, five hundred seventy-four million, two hundred thirteen thousand, five hundred forty-five".