42545224541 has 2 divisors, whose sum is σ = 42545224542. Its totient is φ = 42545224540.

The previous prime is 42545224537. The next prime is 42545224571. The reversal of 42545224541 is 14542254524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42537412516 + 7812025 = 206246^2 + 2795^2 .

It is a cyclic number.

It is not a de Polignac number, because 42545224541 - 2² = 42545224537 is a prime.

It is a super-2 number, since 2×42545224541² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42545224495 and 42545224504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42545224531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21272612270 + 21272612271.

It is an arithmetic number, because the mean of its divisors is an integer number (21272612271).

Almost surely, 2^42545224541 is an apocalyptic number.

It is an amenable number.

42545224541 is a deficient number, since it is larger than the sum of its proper divisors (1).

42545224541 is an equidigital number, since it uses as much as digits as its factorization.

42545224541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256000, while the sum is 38.

The spelling of 42545224541 in words is "forty-two billion, five hundred forty-five million, two hundred twenty-four thousand, five hundred forty-one".