1001534525513 has 16 divisors (see below), whose sum is σ = 1010061601920. Its totient is φ = 993042941184.

The previous prime is 1001534525507. The next prime is 1001534525549. The reversal of 1001534525513 is 3155254351001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001534525513 is a prime.

It is a super-3 number, since 3×1001534525513³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001534525213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187796795 + ... + 187802127.

It is an arithmetic number, because the mean of its divisors is an integer number (63128850120).

Almost surely, 2^{1001534525513} is an apocalyptic number.

It is an amenable number.

1001534525513 is a deficient number, since it is larger than the sum of its proper divisors (8527076407).

1001534525513 is a wasteful number, since it uses less digits than its factorization.

1001534525513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8368.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 1001534525513 its reverse (3155254351001), we get a palindrome (4156788876514).

The spelling of 1001534525513 in words is "one trillion, one billion, five hundred thirty-four million, five hundred twenty-five thousand, five hundred thirteen".