5206143657 has 64 divisors (see below), whose sum is σ = 8413009920. Its totient is φ = 2821862400.

The previous prime is 5206143653. The next prime is 5206143661. The reversal of 5206143657 is 7563416025.

It is an interprime number because it is at equal distance from previous prime (5206143653) and next prime (5206143661).

It is not a de Polignac number, because 5206143657 - 2² = 5206143653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (5206143653) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1795633 + ... + 1798529.

It is an arithmetic number, because the mean of its divisors is an integer number (131453280).

Almost surely, 2^5206143657 is an apocalyptic number.

It is an amenable number.

5206143657 is a deficient number, since it is larger than the sum of its proper divisors (3206866263).

5206143657 is a wasteful number, since it uses less digits than its factorization.

5206143657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 5206143657 is about 72153.6115312324. The cubic root of 5206143657 is about 1733.1602339426.

The spelling of 5206143657 in words is "five billion, two hundred six million, one hundred forty-three thousand, six hundred fifty-seven".