50513131 has 2 divisors, whose sum is σ = 50513132. Its totient is φ = 50513130.

The previous prime is 50513119. The next prime is 50513143. The reversal of 50513131 is 13131505.

It is a balanced prime because it is at equal distance from previous prime (50513119) and next prime (50513143).

It is a cyclic number.

It is not a de Polignac number, because 50513131 - 2⁹ = 50512619 is a prime.

It is a super-2 number, since 2×50513131² = 5103152806846322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50513099 and 50513108.

It is not a weakly prime, because it can be changed into another prime (50513161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25256565 + 25256566.

It is an arithmetic number, because the mean of its divisors is an integer number (25256566).

Almost surely, 2^50513131 is an apocalyptic number.

50513131 is a deficient number, since it is larger than the sum of its proper divisors (1).

50513131 is an equidigital number, since it uses as much as digits as its factorization.

50513131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 50513131 is about 7107.2590356621. The cubic root of 50513131 is about 369.6591235969.

Adding to 50513131 its reverse (13131505), we get a palindrome (63644636).

The spelling of 50513131 in words is "fifty million, five hundred thirteen thousand, one hundred thirty-one".