50504981 has 2 divisors, whose sum is σ = 50504982. Its totient is φ = 50504980.

The previous prime is 50504959. The next prime is 50504999. The reversal of 50504981 is 18940505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40322500 + 10182481 = 6350^2 + 3191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50504981 is a prime.

It is a super-2 number, since 2×50504981² = 5101506211620722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50504281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25252490 + 25252491.

It is an arithmetic number, because the mean of its divisors is an integer number (25252491).

Almost surely, 2^50504981 is an apocalyptic number.

It is an amenable number.

50504981 is a deficient number, since it is larger than the sum of its proper divisors (1).

50504981 is an equidigital number, since it uses as much as digits as its factorization.

50504981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 50504981 is about 7106.6856550716. The cubic root of 50504981 is about 369.6392417441.

The spelling of 50504981 in words is "fifty million, five hundred four thousand, nine hundred eighty-one".