402555555204 has 24 divisors (see below), whose sum is σ = 1024686868128. Its totient is φ = 121986531840.

The previous prime is 402555555203. The next prime is 402555555251.

It is a happy number.

402555555204 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (402555555203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524831517 + ... + 1524831780.

It is an arithmetic number, because the mean of its divisors is an integer number (42695286172).

Almost surely, 2^402555555204 is an apocalyptic number.

402555555204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402555555204 is an abundant number, since it is smaller than the sum of its proper divisors (622131312924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402555555204 is a wasteful number, since it uses less digits than its factorization.

402555555204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049663315 (or 3049663313 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 42.

It can be divided in two parts, 402555 and 555204, that added together give a palindrome (957759).

The spelling of 402555555204 in words is "four hundred two billion, five hundred fifty-five million, five hundred fifty-five thousand, two hundred four".