57145553785 has 8 divisors (see below), whose sum is σ = 71556171840. Its totient is φ = 43728771504.

The previous prime is 57145553753. The next prime is 57145553789. The reversal of 57145553785 is 58735554175.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57145553785 - 2⁵ = 57145553753 is a prime.

It is a super-2 number, since 2×57145553785² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57145553789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248458815 + ... + 248459044.

It is an arithmetic number, because the mean of its divisors is an integer number (8944521480).

Almost surely, 2^57145553785 is an apocalyptic number.

It is an amenable number.

57145553785 is a deficient number, since it is larger than the sum of its proper divisors (14410618055).

57145553785 is a wasteful number, since it uses less digits than its factorization.

57145553785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496917887.

The product of its digits is 14700000, while the sum is 55.

The spelling of 57145553785 in words is "fifty-seven billion, one hundred forty-five million, five hundred fifty-three thousand, seven hundred eighty-five".