1423135513550 has 24 divisors (see below), whose sum is σ = 2647066843992. Its totient is φ = 569246724000.

The previous prime is 1423135513537. The next prime is 1423135513559. The reversal of 1423135513550 is 553155313241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423135513559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5180660 + ... + 5448440.

It is an arithmetic number, because the mean of its divisors is an integer number (110294451833).

Almost surely, 2^{1423135513550} is an apocalyptic number.

1423135513550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1423135513550 is a deficient number, since it is larger than the sum of its proper divisors (1223931330442).

1423135513550 is a wasteful number, since it uses less digits than its factorization.

1423135513550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374084 (or 374079 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 1423135513550 in words is "one trillion, four hundred twenty-three billion, one hundred thirty-five million, five hundred thirteen thousand, five hundred fifty".