1564332552 has 48 divisors (see below), whose sum is σ = 4260438000. Its totient is φ = 518526816.

The previous prime is 1564332527. The next prime is 1564332559. The reversal of 1564332552 is 2552334651.

1564332552 is a `hidden beast` number, since 1 + 5 + 643 + 3 + 2 + 5 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1564332559) 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, 47802 + ... + 73577.

It is an arithmetic number, because the mean of its divisors is an integer number (88759125).

Almost surely, 2^1564332552 is an apocalyptic number.

1564332552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1564332552 is an abundant number, since it is smaller than the sum of its proper divisors (2696105448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1564332552 is a wasteful number, since it uses less digits than its factorization.

1564332552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121570 (or 121563 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 1564332552 is about 39551.6441124765. The cubic root of 1564332552 is about 1160.8506819877.

The spelling of 1564332552 in words is "one billion, five hundred sixty-four million, three hundred thirty-two thousand, five hundred fifty-two".