54894661 has 2 divisors, whose sum is σ = 54894662. Its totient is φ = 54894660.

The previous prime is 54894659. The next prime is 54894673. The reversal of 54894661 is 16649845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41344900 + 13549761 = 6430^2 + 3681^2 .

It is a cyclic number.

It is not a de Polignac number, because 54894661 - 2¹ = 54894659 is a prime.

Together with 54894659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54894601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27447330 + 27447331.

It is an arithmetic number, because the mean of its divisors is an integer number (27447331).

Almost surely, 2^54894661 is an apocalyptic number.

It is an amenable number.

54894661 is a deficient number, since it is larger than the sum of its proper divisors (1).

54894661 is an equidigital number, since it uses as much as digits as its factorization.

54894661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 54894661 is about 7409.0931293917. The cubic root of 54894661 is about 380.0523035116.

It can be divided in two parts, 54894 and 661, that added together give a palindrome (55555).

The spelling of 54894661 in words is "fifty-four million, eight hundred ninety-four thousand, six hundred sixty-one".