13423551550 has 24 divisors (see below), whose sum is σ = 25135389000. Its totient is φ = 5333381280.

The previous prime is 13423551527. The next prime is 13423551569. The reversal of 13423551550 is 5515532431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 893460 + ... + 908359.

It is an arithmetic number, because the mean of its divisors is an integer number (1047307875).

Almost surely, 2^13423551550 is an apocalyptic number.

13423551550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13423551550 is a deficient number, since it is larger than the sum of its proper divisors (11711837450).

13423551550 is a wasteful number, since it uses less digits than its factorization.

13423551550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801980 (or 1801975 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 13423551550 in words is "thirteen billion, four hundred twenty-three million, five hundred fifty-one thousand, five hundred fifty".