49866251 has 2 divisors, whose sum is σ = 49866252. Its totient is φ = 49866250.

The previous prime is 49866247. The next prime is 49866293. The reversal of 49866251 is 15266894.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49866251 - 2² = 49866247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49866199 and 49866208.

It is not a weakly prime, because it can be changed into another prime (49866851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24933125 + 24933126.

It is an arithmetic number, because the mean of its divisors is an integer number (24933126).

Almost surely, 2^49866251 is an apocalyptic number.

49866251 is a deficient number, since it is larger than the sum of its proper divisors (1).

49866251 is an equidigital number, since it uses as much as digits as its factorization.

49866251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 49866251 is about 7061.6039962603. The cubic root of 49866251 is about 368.0743661737.

The spelling of 49866251 in words is "forty-nine million, eight hundred sixty-six thousand, two hundred fifty-one".