55153612819 has 2 divisors, whose sum is σ = 55153612820. Its totient is φ = 55153612818.

The previous prime is 55153612783. The next prime is 55153612883. The reversal of 55153612819 is 91821635155.

55153612819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55153612819 - 2⁹ = 55153612307 is a prime.

It is a super-2 number, since 2×55153612819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55153652819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27576806409 + 27576806410.

It is an arithmetic number, because the mean of its divisors is an integer number (27576806410).

Almost surely, 2^55153612819 is an apocalyptic number.

55153612819 is a deficient number, since it is larger than the sum of its proper divisors (1).

55153612819 is an equidigital number, since it uses as much as digits as its factorization.

55153612819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324000, while the sum is 46.

The spelling of 55153612819 in words is "fifty-five billion, one hundred fifty-three million, six hundred twelve thousand, eight hundred nineteen".