54599681 has 2 divisors, whose sum is σ = 54599682. Its totient is φ = 54599680.

The previous prime is 54599653. The next prime is 54599717. The reversal of 54599681 is 18699545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47886400 + 6713281 = 6920^2 + 2591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54599681 is a prime.

It is a super-2 number, since 2×54599681² = 5962250330603522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54599581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27299840 + 27299841.

It is an arithmetic number, because the mean of its divisors is an integer number (27299841).

It is a Proth number, since it is equal to 6665 ⋅ 2¹³ + 1 and 6665 < 2¹³.

Almost surely, 2^54599681 is an apocalyptic number.

It is an amenable number.

54599681 is a deficient number, since it is larger than the sum of its proper divisors (1).

54599681 is an equidigital number, since it uses as much as digits as its factorization.

54599681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 47.

The square root of 54599681 is about 7389.1596951210. The cubic root of 54599681 is about 379.3703353305.

The spelling of 54599681 in words is "fifty-four million, five hundred ninety-nine thousand, six hundred eighty-one".