1564922652 has 12 divisors (see below), whose sum is σ = 3651486216. Its totient is φ = 521640880.

The previous prime is 1564922651. The next prime is 1564922677. The reversal of 1564922652 is 2562294651.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1564922651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65205099 + ... + 65205122.

It is an arithmetic number, because the mean of its divisors is an integer number (304290518).

Almost surely, 2^1564922652 is an apocalyptic number.

1564922652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1564922652 is an abundant number, since it is smaller than the sum of its proper divisors (2086563564).

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

1564922652 is a wasteful number, since it uses less digits than its factorization.

1564922652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130410228 (or 130410226 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 1564922652 is about 39559.1032759844. The cubic root of 1564922652 is about 1160.9966296147.

The spelling of 1564922652 in words is "one billion, five hundred sixty-four million, nine hundred twenty-two thousand, six hundred fifty-two".