555015431040 has 128 divisors (see below), whose sum is σ = 2021841976320. Its totient is φ = 126860666880.

The previous prime is 555015430997. The next prime is 555015431051. The reversal of 555015431040 is 40134510555.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 555015430992 and 555015431010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20634456 + ... + 20661335.

It is an arithmetic number, because the mean of its divisors is an integer number (15795640440).

Almost surely, 2^555015431040 is an apocalyptic number.

It is an amenable number.

555015431040 is an abundant number, since it is smaller than the sum of its proper divisors (1466826545280).

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

555015431040 is a wasteful number, since it uses less digits than its factorization.

555015431040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41295820 (or 41295808 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

Adding to 555015431040 its reverse (40134510555), we get a palindrome (595149941595).

The spelling of 555015431040 in words is "five hundred fifty-five billion, fifteen million, four hundred thirty-one thousand, forty".