1315555554 has 16 divisors (see below), whose sum is σ = 2769590880. Its totient is φ = 415438560.

The previous prime is 1315555543. The next prime is 1315555583. The reversal of 1315555554 is 4555555131.

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, 5769867 + ... + 5770094.

It is an arithmetic number, because the mean of its divisors is an integer number (173099430).

Almost surely, 2^1315555554 is an apocalyptic number.

1315555554 is an abundant number, since it is smaller than the sum of its proper divisors (1454035326).

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

1315555554 is a wasteful number, since it uses less digits than its factorization.

1315555554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11539985.

The product of its digits is 187500, while the sum is 39.

The square root of 1315555554 is about 36270.5880018508. The cubic root of 1315555554 is about 1095.7287682184.

It can be divided in two parts, 13 and 15555554, that multiplied together give a palindrome (202222202).

The spelling of 1315555554 in words is "one billion, three hundred fifteen million, five hundred fifty-five thousand, five hundred fifty-four".