564554055 has 32 divisors (see below), whose sum is σ = 981731520. Its totient is φ = 275374080.

The previous prime is 564554033. The next prime is 564554057. The reversal of 564554055 is 550455465.

It is a happy number.

It is not a de Polignac number, because 564554055 - 2²¹ = 562456903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564554057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7975 + ... + 34535.

It is an arithmetic number, because the mean of its divisors is an integer number (30679110).

Almost surely, 2^564554055 is an apocalyptic number.

564554055 is a deficient number, since it is larger than the sum of its proper divisors (417177465).

564554055 is a wasteful number, since it uses less digits than its factorization.

564554055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26691.

The product of its (nonzero) digits is 300000, while the sum is 39.

The square root of 564554055 is about 23760.3462727293. The cubic root of 564554055 is about 826.4853827863.

The spelling of 564554055 in words is "five hundred sixty-four million, five hundred fifty-four thousand, fifty-five".