50724251 has 2 divisors, whose sum is σ = 50724252. Its totient is φ = 50724250.

The previous prime is 50724239. The next prime is 50724263. The reversal of 50724251 is 15242705.

It is a balanced prime because it is at equal distance from previous prime (50724239) and next prime (50724263).

It is a cyclic number.

It is not a de Polignac number, because 50724251 - 2¹⁸ = 50462107 is a prime.

It is a super-2 number, since 2×50724251² = 5145899279022002, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50724251.

It is not a weakly prime, because it can be changed into another prime (50724211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25362125 + 25362126.

It is an arithmetic number, because the mean of its divisors is an integer number (25362126).

Almost surely, 2^50724251 is an apocalyptic number.

50724251 is a deficient number, since it is larger than the sum of its proper divisors (1).

50724251 is an equidigital number, since it uses as much as digits as its factorization.

50724251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 50724251 is about 7122.0959695865. The cubic root of 50724251 is about 370.1734054485.

Adding to 50724251 its reverse (15242705), we get a palindrome (65966956).

The spelling of 50724251 in words is "fifty million, seven hundred twenty-four thousand, two hundred fifty-one".