54002145531 has 8 divisors (see below), whose sum is σ = 72012096000. Its totient is φ = 35996812712.

The previous prime is 54002145517. The next prime is 54002145551. The reversal of 54002145531 is 13554120045.

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

It is a cyclic number.

It is not a de Polignac number, because 54002145531 - 2⁵ = 54002145499 is a prime.

It is a super-2 number, since 2×54002145531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54002145551) 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, 1127031 + ... + 1173968.

It is an arithmetic number, because the mean of its divisors is an integer number (9001512000).

Almost surely, 2^54002145531 is an apocalyptic number.

54002145531 is a deficient number, since it is larger than the sum of its proper divisors (18009950469).

54002145531 is a wasteful number, since it uses less digits than its factorization.

54002145531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308825.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 54002145531 its reverse (13554120045), we get a palindrome (67556265576).

The spelling of 54002145531 in words is "fifty-four billion, two million, one hundred forty-five thousand, five hundred thirty-one".