1001513550 has 48 divisors (see below), whose sum is σ = 2569411440. Its totient is φ = 257859840.

The previous prime is 1001513533. The next prime is 1001513563. The reversal of 1001513550 is 553151001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110767 + ... + 119466.

It is an arithmetic number, because the mean of its divisors is an integer number (53529405).

Almost surely, 2^1001513550 is an apocalyptic number.

1001513550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001513550 is an abundant number, since it is smaller than the sum of its proper divisors (1567897890).

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

1001513550 is a wasteful number, since it uses less digits than its factorization.

1001513550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230277 (or 230272 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 1001513550 is about 31646.6988799780. The cubic root of 1001513550 is about 1000.5042623434.

Adding to 1001513550 its reverse (553151001), we get a palindrome (1554664551).

The spelling of 1001513550 in words is "one billion, one million, five hundred thirteen thousand, five hundred fifty".