48951389 has 2 divisors, whose sum is σ = 48951390. Its totient is φ = 48951388.

The previous prime is 48951361. The next prime is 48951403. The reversal of 48951389 is 98315984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25351225 + 23600164 = 5035^2 + 4858^2 .

It is a cyclic number.

It is not a de Polignac number, because 48951389 - 2¹² = 48947293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48951319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24475694 + 24475695.

It is an arithmetic number, because the mean of its divisors is an integer number (24475695).

Almost surely, 2^48951389 is an apocalyptic number.

It is an amenable number.

48951389 is a deficient number, since it is larger than the sum of its proper divisors (1).

48951389 is an equidigital number, since it uses as much as digits as its factorization.

48951389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 47.

The square root of 48951389 is about 6996.5269241246. The cubic root of 48951389 is about 365.8095224542.

The spelling of 48951389 in words is "forty-eight million, nine hundred fifty-one thousand, three hundred eighty-nine".