2562317157 has 4 divisors (see below), whose sum is σ = 3416422880. Its totient is φ = 1708211436.

The previous prime is 2562317141. The next prime is 2562317161. The reversal of 2562317157 is 7517132652.

It is a happy number.

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 not a de Polignac number, because 2562317157 - 2⁴ = 2562317141 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 (2562317117) 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, 427052857 + ... + 427052862.

It is an arithmetic number, because the mean of its divisors is an integer number (854105720).

Almost surely, 2^2562317157 is an apocalyptic number.

It is an amenable number.

2562317157 is a deficient number, since it is larger than the sum of its proper divisors (854105723).

2562317157 is an equidigital number, since it uses as much as digits as its factorization.

2562317157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854105722.

The product of its digits is 88200, while the sum is 39.

The square root of 2562317157 is about 50619.3358016480. The cubic root of 2562317157 is about 1368.3933706604.

The spelling of 2562317157 in words is "two billion, five hundred sixty-two million, three hundred seventeen thousand, one hundred fifty-seven".