555500040 has 32 divisors (see below), whose sum is σ = 1666500480. Its totient is φ = 148133312.

The previous prime is 555500039. The next prime is 555500051. The reversal of 555500040 is 40005555.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2314464 + ... + 2314703.

It is an arithmetic number, because the mean of its divisors is an integer number (52078140).

Almost surely, 2^555500040 is an apocalyptic number.

It is an amenable number.

555500040 is an abundant number, since it is smaller than the sum of its proper divisors (1111000440).

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

555500040 is a wasteful number, since it uses less digits than its factorization.

555500040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629181 (or 4629177 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 555500040 is about 23569.0483473559. The cubic root of 555500040 is about 822.0433079047.

Adding to 555500040 its reverse (40005555), we get a palindrome (595505595).

The spelling of 555500040 in words is "five hundred fifty-five million, five hundred thousand, forty".