55877442451357 has 2 divisors, whose sum is σ = 55877442451358. Its totient is φ = 55877442451356.

The previous prime is 55877442451351. The next prime is 55877442451367. The reversal of 55877442451357 is 75315424477855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54771455799076 + 1105986652281 = 7400774^2 + 1051659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55877442451357 is a prime.

It is a super-2 number, since 2×55877442451357² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55877442451292 and 55877442451301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55877442451351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27938721225678 + 27938721225679.

It is an arithmetic number, because the mean of its divisors is an integer number (27938721225679).

Almost surely, 2^{55877442451357} is an apocalyptic number.

It is an amenable number.

55877442451357 is a deficient number, since it is larger than the sum of its proper divisors (1).

55877442451357 is an equidigital number, since it uses as much as digits as its factorization.

55877442451357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560000, while the sum is 67.

The spelling of 55877442451357 in words is "fifty-five trillion, eight hundred seventy-seven billion, four hundred forty-two million, four hundred fifty-one thousand, three hundred fifty-seven".