1653426523 has 16 divisors (see below), whose sum is σ = 1908645120. Its totient is φ = 1403031456.

The previous prime is 1653426499. The next prime is 1653426581. The reversal of 1653426523 is 3256243561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1653426523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1653426023) 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, 304236 + ... + 309622.

It is an arithmetic number, because the mean of its divisors is an integer number (119290320).

Almost surely, 2^1653426523 is an apocalyptic number.

1653426523 is a deficient number, since it is larger than the sum of its proper divisors (255218597).

1653426523 is a wasteful number, since it uses less digits than its factorization.

1653426523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826.

The product of its digits is 129600, while the sum is 37.

The square root of 1653426523 is about 40662.3477310398. The cubic root of 1653426523 is about 1182.4831656739.

The spelling of 1653426523 in words is "one billion, six hundred fifty-three million, four hundred twenty-six thousand, five hundred twenty-three".