1566232056525 has 12 divisors (see below), whose sum is σ = 2589503666912. Its totient is φ = 835323763440.

The previous prime is 1566232056491. The next prime is 1566232056541. The reversal of 1566232056525 is 5256502326651.

It is a happy number.

It is not a de Polignac number, because 1566232056525 - 2⁷ = 1566232056397 is a prime.

It is a Duffinian number.

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, 10441546969 + ... + 10441547118.

Almost surely, 2^{1566232056525} is an apocalyptic number.

1566232056525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1566232056525 is a deficient number, since it is larger than the sum of its proper divisors (1023271610387).

1566232056525 is a wasteful number, since it uses less digits than its factorization.

1566232056525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20883094100 (or 20883094095 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 1566232056525 in words is "one trillion, five hundred sixty-six billion, two hundred thirty-two million, fifty-six thousand, five hundred twenty-five".