1513165500 has 432 divisors, whose sum is σ = 6011608512. Its totient is φ = 313632000.

The previous prime is 1513165487. The next prime is 1513165501. The reversal of 1513165500 is 55613151.

1513165500 is a `hidden beast` number, since 1 + 5 + 1 + 3 + 1 + 655 + 0 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513165501) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3811302 + ... + 3811698.

Almost surely, 2^1513165500 is an apocalyptic number.

1513165500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1513165500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3005804256).

1513165500 is an abundant number, since it is smaller than the sum of its proper divisors (4498443012).

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

1513165500 is a wasteful number, since it uses less digits than its factorization.

1513165500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 1513165500 is about 38899.4280163603. The cubic root of 1513165500 is about 1148.0535441443.

Adding to 1513165500 its reverse (55613151), we get a palindrome (1568778651).

It can be divided in two parts, 151316 and 5500, that added together give a square (156816 = 396²).

The spelling of 1513165500 in words is "one billion, five hundred thirteen million, one hundred sixty-five thousand, five hundred".