55142033477 has 2 divisors, whose sum is σ = 55142033478. Its totient is φ = 55142033476.

The previous prime is 55142033437. The next prime is 55142033497. The reversal of 55142033477 is 77433024155.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47685020161 + 7457013316 = 218369^2 + 86354^2 .

It is a cyclic number.

It is not a de Polignac number, because 55142033477 - 2⁶ = 55142033413 is a prime.

It is a super-4 number, since 4×55142033477⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55142033437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27571016738 + 27571016739.

It is an arithmetic number, because the mean of its divisors is an integer number (27571016739).

Almost surely, 2^55142033477 is an apocalyptic number.

It is an amenable number.

55142033477 is a deficient number, since it is larger than the sum of its proper divisors (1).

55142033477 is an equidigital number, since it uses as much as digits as its factorization.

55142033477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 55142033477 in words is "fifty-five billion, one hundred forty-two million, thirty-three thousand, four hundred seventy-seven".