49111421 has 2 divisors, whose sum is σ = 49111422. Its totient is φ = 49111420.

The previous prime is 49111397. The next prime is 49111427. The reversal of 49111421 is 12411194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43375396 + 5736025 = 6586^2 + 2395^2 .

It is a cyclic number.

It is not a de Polignac number, because 49111421 - 2¹⁸ = 48849277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49111427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24555710 + 24555711.

It is an arithmetic number, because the mean of its divisors is an integer number (24555711).

Almost surely, 2^49111421 is an apocalyptic number.

It is an amenable number.

49111421 is a deficient number, since it is larger than the sum of its proper divisors (1).

49111421 is an equidigital number, since it uses as much as digits as its factorization.

49111421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 23.

The square root of 49111421 is about 7007.9541237083. The cubic root of 49111421 is about 366.2077239620.

The spelling of 49111421 in words is "forty-nine million, one hundred eleven thousand, four hundred twenty-one".