55586290431 has 16 divisors (see below), whose sum is σ = 84718688768. Its totient is φ = 31757680800.

The previous prime is 55586290393. The next prime is 55586290489. The reversal of 55586290431 is 13409268555.

It is not a de Polignac number, because 55586290431 - 2¹³ = 55586282239 is a prime.

It is a super-2 number, since 2×55586290431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55586190431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129640 + ... + 357741.

It is an arithmetic number, because the mean of its divisors is an integer number (5294918048).

Almost surely, 2^55586290431 is an apocalyptic number.

55586290431 is a deficient number, since it is larger than the sum of its proper divisors (29132398337).

55586290431 is a wasteful number, since it uses less digits than its factorization.

55586290431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492822.

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 55586290431 in words is "fifty-five billion, five hundred eighty-six million, two hundred ninety thousand, four hundred thirty-one".