54558651531 has 32 divisors (see below), whose sum is σ = 81200406528. Its totient is φ = 32423685120.

The previous prime is 54558651527. The next prime is 54558651547. The reversal of 54558651531 is 13515685545.

It is not a de Polignac number, because 54558651531 - 2² = 54558651527 is a prime.

It is a super-2 number, since 2×54558651531² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (54558651571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292810 + ... + 441423.

It is an arithmetic number, because the mean of its divisors is an integer number (2537512704).

Almost surely, 2^54558651531 is an apocalyptic number.

54558651531 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

54558651531 is a deficient number, since it is larger than the sum of its proper divisors (26641754997).

54558651531 is a wasteful number, since it uses less digits than its factorization.

54558651531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734331.

The product of its digits is 1800000, while the sum is 48.

The spelling of 54558651531 in words is "fifty-four billion, five hundred fifty-eight million, six hundred fifty-one thousand, five hundred thirty-one".