5205712157 has 4 divisors (see below), whose sum is σ = 5205986016. Its totient is φ = 5205438300.

The previous prime is 5205712147. The next prime is 5205712201. The reversal of 5205712157 is 7512175025.

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 a de Polignac number, because none of the positive numbers 2^k-5205712157 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 (5205712147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106103 + ... + 147204.

It is an arithmetic number, because the mean of its divisors is an integer number (1301496504).

Almost surely, 2^5205712157 is an apocalyptic number.

It is an amenable number.

5205712157 is a deficient number, since it is larger than the sum of its proper divisors (273859).

5205712157 is a wasteful number, since it uses less digits than its factorization.

5205712157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273858.

The product of its (nonzero) digits is 24500, while the sum is 35.

The square root of 5205712157 is about 72150.6213209561. The cubic root of 5205712157 is about 1733.1123495358.

The spelling of 5205712157 in words is "five billion, two hundred five million, seven hundred twelve thousand, one hundred fifty-seven".