49875421 has 2 divisors, whose sum is σ = 49875422. Its totient is φ = 49875420.

The previous prime is 49875401. The next prime is 49875439. The reversal of 49875421 is 12457894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48804196 + 1071225 = 6986^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 49875421 - 2²³ = 41486813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49875401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24937710 + 24937711.

It is an arithmetic number, because the mean of its divisors is an integer number (24937711).

Almost surely, 2^49875421 is an apocalyptic number.

It is an amenable number.

49875421 is a deficient number, since it is larger than the sum of its proper divisors (1).

49875421 is an equidigital number, since it uses as much as digits as its factorization.

49875421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 49875421 is about 7062.2532523268. The cubic root of 49875421 is about 368.0969267565.

The spelling of 49875421 in words is "forty-nine million, eight hundred seventy-five thousand, four hundred twenty-one".