1315045550 has 48 divisors (see below), whose sum is σ = 3010453152. Its totient is φ = 416188800.

The previous prime is 1315045549. The next prime is 1315045607. The reversal of 1315045550 is 555405131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139961 + ... + 149060.

It is an arithmetic number, because the mean of its divisors is an integer number (62717774).

Almost surely, 2^1315045550 is an apocalyptic number.

1315045550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315045550 is an abundant number, since it is smaller than the sum of its proper divisors (1695407602).

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

1315045550 is a wasteful number, since it uses less digits than its factorization.

1315045550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289053 (or 289048 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 1315045550 is about 36263.5567753633. The cubic root of 1315045550 is about 1095.5871554774.

The spelling of 1315045550 in words is "one billion, three hundred fifteen million, forty-five thousand, five hundred fifty".