1623553325 has 24 divisors (see below), whose sum is σ = 2211316800. Its totient is φ = 1176975360.

The previous prime is 1623553307. The next prime is 1623553331. The reversal of 1623553325 is 5233553261.

It is not a de Polignac number, because 1623553325 - 2²⁴ = 1606776109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63380 + ... + 85229.

It is an arithmetic number, because the mean of its divisors is an integer number (92138200).

Almost surely, 2^1623553325 is an apocalyptic number.

It is an amenable number.

1623553325 is a deficient number, since it is larger than the sum of its proper divisors (587763475).

1623553325 is a wasteful number, since it uses less digits than its factorization.

1623553325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148661 (or 148656 counting only the distinct ones).

The product of its digits is 81000, while the sum is 35.

The square root of 1623553325 is about 40293.3409510802. The cubic root of 1623553325 is about 1175.3183564704.

The spelling of 1623553325 in words is "one billion, six hundred twenty-three million, five hundred fifty-three thousand, three hundred twenty-five".