501367949 has 2 divisors, whose sum is σ = 501367950. Its totient is φ = 501367948.

The previous prime is 501367897. The next prime is 501367973. The reversal of 501367949 is 949763105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 493062025 + 8305924 = 22205^2 + 2882^2 .

It is a cyclic number.

It is not a de Polignac number, because 501367949 - 2⁸ = 501367693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501367049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250683974 + 250683975.

It is an arithmetic number, because the mean of its divisors is an integer number (250683975).

Almost surely, 2^501367949 is an apocalyptic number.

It is an amenable number.

501367949 is a deficient number, since it is larger than the sum of its proper divisors (1).

501367949 is an equidigital number, since it uses as much as digits as its factorization.

501367949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 501367949 is about 22391.2471515099. The cubic root of 501367949 is about 794.4236947730.

It can be divided in two parts, 50136 and 7949, that added together give a palindrome (58085).

The spelling of 501367949 in words is "five hundred one million, three hundred sixty-seven thousand, nine hundred forty-nine".