505841157 has 6 divisors (see below), whose sum is σ = 730659462. Its totient is φ = 337227432.

The previous prime is 505841131. The next prime is 505841159. The reversal of 505841157 is 751148505.

It can be written as a sum of positive squares in only one way, i.e., 503284356 + 2556801 = 22434^2 + 1599^2 .

It is not a de Polignac number, because 505841157 - 2¹⁴ = 505824773 is a prime.

It is a super-2 number, since 2×505841157² = 511750552230197298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505841159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28102278 + ... + 28102295.

It is an arithmetic number, because the mean of its divisors is an integer number (121776577).

Almost surely, 2^505841157 is an apocalyptic number.

It is an amenable number.

505841157 is a deficient number, since it is larger than the sum of its proper divisors (224818305).

505841157 is a wasteful number, since it uses less digits than its factorization.

505841157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56204579 (or 56204576 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 36.

The square root of 505841157 is about 22490.9127649369. The cubic root of 505841157 is about 796.7793207016.

The spelling of 505841157 in words is "five hundred five million, eight hundred forty-one thousand, one hundred fifty-seven".