557443745 has 8 divisors (see below), whose sum is σ = 675556200. Its totient is φ = 441539200.

The previous prime is 557443693. The next prime is 557443759. The reversal of 557443745 is 547344755.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 141324544 + 416119201 = 11888^2 + 20399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 557443745 - 2¹⁶ = 557378209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 557443696 and 557443705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551420 + ... + 552429.

It is an arithmetic number, because the mean of its divisors is an integer number (84444525).

Almost surely, 2^557443745 is an apocalyptic number.

It is an amenable number.

557443745 is a deficient number, since it is larger than the sum of its proper divisors (118112455).

557443745 is a wasteful number, since it uses less digits than its factorization.

557443745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103955.

The product of its digits is 1176000, while the sum is 44.

The square root of 557443745 is about 23610.2466103173. The cubic root of 557443745 is about 823.0009734303. Note that the first 3 decimals are identical.

The spelling of 557443745 in words is "five hundred fifty-seven million, four hundred forty-three thousand, seven hundred forty-five".