48381569 has 2 divisors, whose sum is σ = 48381570. Its totient is φ = 48381568.

The previous prime is 48381559. The next prime is 48381583. The reversal of 48381569 is 96518384.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45050944 + 3330625 = 6712^2 + 1825^2 .

It is a cyclic number.

It is not a de Polignac number, because 48381569 - 2¹⁶ = 48316033 is a prime.

It is a super-2 number, since 2×48381569² = 4681552437803522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (48381559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24190784 + 24190785.

It is an arithmetic number, because the mean of its divisors is an integer number (24190785).

Almost surely, 2^48381569 is an apocalyptic number.

It is an amenable number.

48381569 is a deficient number, since it is larger than the sum of its proper divisors (1).

48381569 is an equidigital number, since it uses as much as digits as its factorization.

48381569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The square root of 48381569 is about 6955.6860912494. The cubic root of 48381569 is about 364.3845737221.

The spelling of 48381569 in words is "forty-eight million, three hundred eighty-one thousand, five hundred sixty-nine".