49921451 has 2 divisors, whose sum is σ = 49921452. Its totient is φ = 49921450.

The previous prime is 49921423. The next prime is 49921453. The reversal of 49921451 is 15412994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49921451 - 2⁶ = 49921387 is a prime.

Together with 49921453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49921453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24960725 + 24960726.

It is an arithmetic number, because the mean of its divisors is an integer number (24960726).

Almost surely, 2^49921451 is an apocalyptic number.

49921451 is a deficient number, since it is larger than the sum of its proper divisors (1).

49921451 is an equidigital number, since it uses as much as digits as its factorization.

49921451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 49921451 is about 7065.5113756897. The cubic root of 49921451 is about 368.2101307589.

The spelling of 49921451 in words is "forty-nine million, nine hundred twenty-one thousand, four hundred fifty-one".