48551381 has 2 divisors, whose sum is σ = 48551382. Its totient is φ = 48551380.

The previous prime is 48551359. The next prime is 48551401. The reversal of 48551381 is 18315584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47679025 + 872356 = 6905^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 48551381 - 2⁶ = 48551317 is a prime.

It is a super-2 number, since 2×48551381² = 4714473194014322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48551341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24275690 + 24275691.

It is an arithmetic number, because the mean of its divisors is an integer number (24275691).

Almost surely, 2^48551381 is an apocalyptic number.

It is an amenable number.

48551381 is a deficient number, since it is larger than the sum of its proper divisors (1).

48551381 is an equidigital number, since it uses as much as digits as its factorization.

48551381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 35.

The square root of 48551381 is about 6967.8821029062. The cubic root of 48551381 is about 364.8103875359.

The spelling of 48551381 in words is "forty-eight million, five hundred fifty-one thousand, three hundred eighty-one".