55877442451031 has 2 divisors, whose sum is σ = 55877442451032. Its totient is φ = 55877442451030.

The previous prime is 55877442450971. The next prime is 55877442451037. The reversal of 55877442451031 is 13015424477855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55877442451031 - 2¹⁴ = 55877442434647 is a prime.

It is a super-2 number, since 2×55877442451031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55877442451037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27938721225515 + 27938721225516.

It is an arithmetic number, because the mean of its divisors is an integer number (27938721225516).

Almost surely, 2^{55877442451031} is an apocalyptic number.

55877442451031 is a deficient number, since it is larger than the sum of its proper divisors (1).

55877442451031 is an equidigital number, since it uses as much as digits as its factorization.

55877442451031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816000, while the sum is 56.

The spelling of 55877442451031 in words is "fifty-five trillion, eight hundred seventy-seven billion, four hundred forty-two million, four hundred fifty-one thousand, thirty-one".