1001553423 has 32 divisors (see below), whose sum is σ = 1505957376. Its totient is φ = 587461248.

The previous prime is 1001553383. The next prime is 1001553437. The reversal of 1001553423 is 3243551001.

It is not a de Polignac number, because 1001553423 - 2⁸ = 1001553167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001553393 and 1001553402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001553473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273561 + ... + 277197.

It is an arithmetic number, because the mean of its divisors is an integer number (47061168).

Almost surely, 2^1001553423 is an apocalyptic number.

1001553423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1001553423 is a deficient number, since it is larger than the sum of its proper divisors (504403953).

1001553423 is a wasteful number, since it uses less digits than its factorization.

1001553423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1001553423 is about 31647.3288446276. The cubic root of 1001553423 is about 1000.5175397730.

The spelling of 1001553423 in words is "one billion, one million, five hundred fifty-three thousand, four hundred twenty-three".