49427251 has 2 divisors, whose sum is σ = 49427252. Its totient is φ = 49427250.

The previous prime is 49427243. The next prime is 49427291. The reversal of 49427251 is 15272494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49427251 - 2³ = 49427243 is a prime.

It is not a weakly prime, because it can be changed into another prime (49427201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24713625 + 24713626.

It is an arithmetic number, because the mean of its divisors is an integer number (24713626).

Almost surely, 2^49427251 is an apocalyptic number.

49427251 is a deficient number, since it is larger than the sum of its proper divisors (1).

49427251 is an equidigital number, since it uses as much as digits as its factorization.

49427251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 49427251 is about 7030.4516924590. The cubic root of 49427251 is about 366.9910606707.

The spelling of 49427251 in words is "forty-nine million, four hundred twenty-seven thousand, two hundred fifty-one".