57043457453 has 4 divisors (see below), whose sum is σ = 57075560220. Its totient is φ = 57011354688.

The previous prime is 57043457431. The next prime is 57043457459. The reversal of 57043457453 is 35475434075.

It is a happy number.

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 30082474249 + 26960983204 = 173443^2 + 164198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57043457453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57043457398 and 57043457407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57043457459) 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, 16048718 + ... + 16052271.

It is an arithmetic number, because the mean of its divisors is an integer number (14268890055).

Almost surely, 2^57043457453 is an apocalyptic number.

It is an amenable number.

57043457453 is a deficient number, since it is larger than the sum of its proper divisors (32102767).

57043457453 is a wasteful number, since it uses less digits than its factorization.

57043457453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32102766.

The product of its (nonzero) digits is 3528000, while the sum is 47.

The spelling of 57043457453 in words is "fifty-seven billion, forty-three million, four hundred fifty-seven thousand, four hundred fifty-three".