555505555494 has 64 divisors (see below), whose sum is σ = 1222715160576. Its totient is φ = 167523024384.

The previous prime is 555505555441. The next prime is 555505555499. The reversal of 555505555494 is 494555505555.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555505555499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 573462 + ... + 1199945.

It is an arithmetic number, because the mean of its divisors is an integer number (19104924384).

Almost surely, 2^555505555494 is an apocalyptic number.

555505555494 is an abundant number, since it is smaller than the sum of its proper divisors (667209605082).

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

555505555494 is a wasteful number, since it uses less digits than its factorization.

555505555494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773549.

The product of its (nonzero) digits is 56250000, while the sum is 57.

The spelling of 555505555494 in words is "five hundred fifty-five billion, five hundred five million, five hundred fifty-five thousand, four hundred ninety-four".