54392881 has 2 divisors, whose sum is σ = 54392882. Its totient is φ = 54392880.

The previous prime is 54392873. The next prime is 54392917. The reversal of 54392881 is 18829345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42771600 + 11621281 = 6540^2 + 3409^2 .

It is a cyclic number.

It is not a de Polignac number, because 54392881 - 2³ = 54392873 is a prime.

It is a super-2 number, since 2×54392881² = 5917171006960322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54392581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27196440 + 27196441.

It is an arithmetic number, because the mean of its divisors is an integer number (27196441).

Almost surely, 2^54392881 is an apocalyptic number.

It is an amenable number.

54392881 is a deficient number, since it is larger than the sum of its proper divisors (1).

54392881 is an equidigital number, since it uses as much as digits as its factorization.

54392881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The square root of 54392881 is about 7375.1529475666. The cubic root of 54392881 is about 378.8907657156.

The spelling of 54392881 in words is "fifty-four million, three hundred ninety-two thousand, eight hundred eighty-one".