54545657 has 2 divisors, whose sum is σ = 54545658. Its totient is φ = 54545656.

The previous prime is 54545653. The next prime is 54545663. The reversal of 54545657 is 75654545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54523456 + 22201 = 7384^2 + 149^2 .

It is a cyclic number.

It is not a de Polignac number, because 54545657 - 2² = 54545653 is a prime.

It is not a weakly prime, because it can be changed into another prime (54545653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27272828 + 27272829.

It is an arithmetic number, because the mean of its divisors is an integer number (27272829).

Almost surely, 2^54545657 is an apocalyptic number.

It is an amenable number.

54545657 is a deficient number, since it is larger than the sum of its proper divisors (1).

54545657 is an equidigital number, since it uses as much as digits as its factorization.

54545657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420000, while the sum is 41.

The square root of 54545657 is about 7385.5031649848. The cubic root of 54545657 is about 379.2451705798.

It can be divided in two parts, 5454 and 5657, that added together give a palindrome (11111).

The spelling of 54545657 in words is "fifty-four million, five hundred forty-five thousand, six hundred fifty-seven".