4057561477 has 4 divisors (see below), whose sum is σ = 4197477420. Its totient is φ = 3917645536.

The previous prime is 4057561471. The next prime is 4057561499. The reversal of 4057561477 is 7741657504.

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 935992836 + 3121568641 = 30594^2 + 55871^2 .

It is a cyclic number.

It is not a de Polignac number, because 4057561477 - 2⁷ = 4057561349 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 (4057561471) 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, 69957928 + ... + 69957985.

It is an arithmetic number, because the mean of its divisors is an integer number (1049369355).

Almost surely, 2^4057561477 is an apocalyptic number.

It is an amenable number.

4057561477 is a deficient number, since it is larger than the sum of its proper divisors (139915943).

4057561477 is a wasteful number, since it uses less digits than its factorization.

4057561477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139915942.

The product of its (nonzero) digits is 823200, while the sum is 46.

The square root of 4057561477 is about 63698.9911772549. The cubic root of 4057561477 is about 1594.9792454790.

The spelling of 4057561477 in words is "four billion, fifty-seven million, five hundred sixty-one thousand, four hundred seventy-seven".