1513235250 has 256 divisors, whose sum is σ = 4421813760. Its totient is φ = 382579200.

The previous prime is 1513235219. The next prime is 1513235261. The reversal of 1513235250 is 525323151.

It is a happy number.

1513235250 is a `hidden beast` number, since 1 + 5 + 132 + 3 + 525 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18231709 + ... + 18231791.

It is an arithmetic number, because the mean of its divisors is an integer number (17272710).

Almost surely, 2^1513235250 is an apocalyptic number.

1513235250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1513235250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2210906880).

1513235250 is an abundant number, since it is smaller than the sum of its proper divisors (2908578510).

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

1513235250 is a wasteful number, since it uses less digits than its factorization.

1513235250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1513235250 is about 38900.3245487747. The cubic root of 1513235250 is about 1148.0711838769.

The spelling of 1513235250 in words is "one billion, five hundred thirteen million, two hundred thirty-five thousand, two hundred fifty".