57155771473 has 4 divisors (see below), whose sum is σ = 57156982128. Its totient is φ = 57154560820.

The previous prime is 57155771461. The next prime is 57155771479. The reversal of 57155771473 is 37417755175.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57155771473 - 2²⁹ = 56618900561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57155771473.

It is not an unprimeable number, because it can be changed into a prime (57155771479) 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, 531511 + ... + 629932.

It is an arithmetic number, because the mean of its divisors is an integer number (14289245532).

Almost surely, 2^57155771473 is an apocalyptic number.

It is an amenable number.

57155771473 is a deficient number, since it is larger than the sum of its proper divisors (1210655).

57155771473 is a wasteful number, since it uses less digits than its factorization.

57155771473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210654.

The product of its digits is 3601500, while the sum is 52.

The spelling of 57155771473 in words is "fifty-seven billion, one hundred fifty-five million, seven hundred seventy-one thousand, four hundred seventy-three".