402555555541 has 4 divisors (see below), whose sum is σ = 402629682784. Its totient is φ = 402481428300.

The previous prime is 402555555539. The next prime is 402555555559. The reversal of 402555555541 is 145555555204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402555555541 - 2¹ = 402555555539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402555555491 and 402555555500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402555555581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37055475 + ... + 37066336.

It is an arithmetic number, because the mean of its divisors is an integer number (100657420696).

Almost surely, 2^402555555541 is an apocalyptic number.

It is an amenable number.

402555555541 is a deficient number, since it is larger than the sum of its proper divisors (74127243).

402555555541 is an equidigital number, since it uses as much as digits as its factorization.

402555555541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74127242.

The product of its (nonzero) digits is 2500000, while the sum is 46.

The spelling of 402555555541 in words is "four hundred two billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred forty-one".