55451357387 has 2 divisors, whose sum is σ = 55451357388. Its totient is φ = 55451357386.

The previous prime is 55451357327. The next prime is 55451357399. The reversal of 55451357387 is 78375315455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55451357387 - 2⁸ = 55451357131 is a prime.

It is not a weakly prime, because it can be changed into another prime (55451357327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27725678693 + 27725678694.

It is an arithmetic number, because the mean of its divisors is an integer number (27725678694).

Almost surely, 2^55451357387 is an apocalyptic number.

55451357387 is a deficient number, since it is larger than the sum of its proper divisors (1).

55451357387 is an equidigital number, since it uses as much as digits as its factorization.

55451357387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820000, while the sum is 53.

The spelling of 55451357387 in words is "fifty-five billion, four hundred fifty-one million, three hundred fifty-seven thousand, three hundred eighty-seven".