54661357 has 2 divisors, whose sum is σ = 54661358. Its totient is φ = 54661356.

The previous prime is 54661351. The next prime is 54661421. The reversal of 54661357 is 75316645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41744521 + 12916836 = 6461^2 + 3594^2 .

It is a cyclic number.

It is not a de Polignac number, because 54661357 - 2³ = 54661349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54661351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27330678 + 27330679.

It is an arithmetic number, because the mean of its divisors is an integer number (27330679).

Almost surely, 2^54661357 is an apocalyptic number.

It is an amenable number.

54661357 is a deficient number, since it is larger than the sum of its proper divisors (1).

54661357 is an equidigital number, since it uses as much as digits as its factorization.

54661357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 54661357 is about 7393.3319281634. The cubic root of 54661357 is about 379.5131276187.

The spelling of 54661357 in words is "fifty-four million, six hundred sixty-one thousand, three hundred fifty-seven".