54615632987 has 2 divisors, whose sum is σ = 54615632988. Its totient is φ = 54615632986.

The previous prime is 54615632963. The next prime is 54615633001. The reversal of 54615632987 is 78923651645.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54615632987 - 2²⁰ = 54614584411 is a prime.

It is not a weakly prime, because it can be changed into another prime (54615632087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27307816493 + 27307816494.

It is an arithmetic number, because the mean of its divisors is an integer number (27307816494).

Almost surely, 2^54615632987 is an apocalyptic number.

54615632987 is a deficient number, since it is larger than the sum of its proper divisors (1).

54615632987 is an equidigital number, since it uses as much as digits as its factorization.

54615632987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 56.

The spelling of 54615632987 in words is "fifty-four billion, six hundred fifteen million, six hundred thirty-two thousand, nine hundred eighty-seven".