55431641144257 has 8 divisors (see below), whose sum is σ = 63440818564032. Its totient is φ = 47445056610000.

The previous prime is 55431641144227. The next prime is 55431641144287. The reversal of 55431641144257 is 75244114613455.

It is an interprime number because it is at equal distance from previous prime (55431641144227) and next prime (55431641144287).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-55431641144257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55431641144227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5648216119 + ... + 5648225932.

It is an arithmetic number, because the mean of its divisors is an integer number (7930102320504).

Almost surely, 2^{55431641144257} is an apocalyptic number.

It is an amenable number.

55431641144257 is a deficient number, since it is larger than the sum of its proper divisors (8009177419775).

55431641144257 is a wasteful number, since it uses less digits than its factorization.

55431641144257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11296442759.

The product of its digits is 8064000, while the sum is 52.

The spelling of 55431641144257 in words is "fifty-five trillion, four hundred thirty-one billion, six hundred forty-one million, one hundred forty-four thousand, two hundred fifty-seven".