45573612541 has 4 divisors (see below), whose sum is σ = 45574049500. Its totient is φ = 45573175584.

The previous prime is 45573612521. The next prime is 45573612569. The reversal of 45573612541 is 14521637554.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14521637554 = 2 ⋅7260818777.

It can be written as a sum of positive squares in 2 ways, for example, as 12155944516 + 33417668025 = 110254^2 + 182805^2 .

It is a cyclic number.

It is not a de Polignac number, because 45573612541 - 2¹⁵ = 45573579773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45573612521) 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, 39535 + ... + 304483.

It is an arithmetic number, because the mean of its divisors is an integer number (11393512375).

Almost surely, 2^45573612541 is an apocalyptic number.

It is an amenable number.

45573612541 is a deficient number, since it is larger than the sum of its proper divisors (436959).

45573612541 is a wasteful number, since it uses less digits than its factorization.

45573612541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436958.

The product of its digits is 504000, while the sum is 43.

The spelling of 45573612541 in words is "forty-five billion, five hundred seventy-three million, six hundred twelve thousand, five hundred forty-one".