405502012541 has 2 divisors, whose sum is σ = 405502012542. Its totient is φ = 405502012540.

The previous prime is 405502012501. The next prime is 405502012547. The reversal of 405502012541 is 145210205504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304984480516 + 100517532025 = 552254^2 + 317045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405502012541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405502012547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202751006270 + 202751006271.

It is an arithmetic number, because the mean of its divisors is an integer number (202751006271).

Almost surely, 2^405502012541 is an apocalyptic number.

It is an amenable number.

405502012541 is a deficient number, since it is larger than the sum of its proper divisors (1).

405502012541 is an equidigital number, since it uses as much as digits as its factorization.

405502012541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 405502012541 in words is "four hundred five billion, five hundred two million, twelve thousand, five hundred forty-one".