13511002550 has 12 divisors (see below), whose sum is σ = 25130464836. Its totient is φ = 5404401000.

The previous prime is 13511002541. The next prime is 13511002577. The reversal of 13511002550 is 5520011531.

It is a happy number.

It is a super-2 number, since 2×13511002550² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135109976 + ... + 135110075.

It is an arithmetic number, because the mean of its divisors is an integer number (2094205403).

Almost surely, 2^13511002550 is an apocalyptic number.

13511002550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13511002550 is a deficient number, since it is larger than the sum of its proper divisors (11619462286).

13511002550 is a wasteful number, since it uses less digits than its factorization.

13511002550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270220063 (or 270220058 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 13511002550 in words is "thirteen billion, five hundred eleven million, two thousand, five hundred fifty".