5557604021 has 4 divisors (see below), whose sum is σ = 5620049100. Its totient is φ = 5495158944.

The previous prime is 5557603967. The next prime is 5557604029. The reversal of 5557604021 is 1204067555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 663062500 + 4894541521 = 25750^2 + 69961^2 .

It is a cyclic number.

It is not a de Polignac number, because 5557604021 - 2¹⁰ = 5557602997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5557604029) 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, 31222406 + ... + 31222583.

It is an arithmetic number, because the mean of its divisors is an integer number (1405012275).

Almost surely, 2^5557604021 is an apocalyptic number.

It is an amenable number.

5557604021 is a deficient number, since it is larger than the sum of its proper divisors (62445079).

5557604021 is an equidigital number, since it uses as much as digits as its factorization.

5557604021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62445078.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 5557604021 is about 74549.3395074698. The cubic root of 5557604021 is about 1771.3152704908.

The spelling of 5557604021 in words is "five billion, five hundred fifty-seven million, six hundred four thousand, twenty-one".