1564504545 has 32 divisors (see below), whose sum is σ = 2541035520. Its totient is φ = 821845440.

The previous prime is 1564504483. The next prime is 1564504553. The reversal of 1564504545 is 5454054651.

It is not a de Polignac number, because 1564504545 - 2¹⁸ = 1564242401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 575740 + ... + 578450.

It is an arithmetic number, because the mean of its divisors is an integer number (79407360).

Almost surely, 2^1564504545 is an apocalyptic number.

1564504545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1564504545 is a deficient number, since it is larger than the sum of its proper divisors (976530975).

1564504545 is a wasteful number, since it uses less digits than its factorization.

1564504545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285.

The product of its (nonzero) digits is 240000, while the sum is 39.

The square root of 1564504545 is about 39553.8183365399. The cubic root of 1564504545 is about 1160.8932242793.

The spelling of 1564504545 in words is "one billion, five hundred sixty-four million, five hundred four thousand, five hundred forty-five".