55887646527431 has 8 divisors (see below), whose sum is σ = 56182770966528. Its totient is φ = 55593175743000.

The previous prime is 55887646527421. The next prime is 55887646527457. The reversal of 55887646527431 is 13472564678855.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55887646527431 is a prime.

It is a super-2 number, since 2×55887646527431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55887646527421) 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, 163242215 + ... + 163584216.

It is an arithmetic number, because the mean of its divisors is an integer number (7022846370816).

Almost surely, 2^{55887646527431} is an apocalyptic number.

55887646527431 is a deficient number, since it is larger than the sum of its proper divisors (295124439097).

55887646527431 is a wasteful number, since it uses less digits than its factorization.

55887646527431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326827333.

The product of its digits is 1354752000, while the sum is 71.

The spelling of 55887646527431 in words is "fifty-five trillion, eight hundred eighty-seven billion, six hundred forty-six million, five hundred twenty-seven thousand, four hundred thirty-one".