54321540509508 has 48 divisors (see below), whose sum is σ = 130114977248256. Its totient is φ = 17629214470560.

The previous prime is 54321540509479. The next prime is 54321540509527. The reversal of 54321540509508 is 80590504512345.

It is a happy number.

It is a super-2 number, since 2×54321540509508² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169090816 + ... + 169411767.

It is an arithmetic number, because the mean of its divisors is an integer number (2710728692672).

Almost surely, 2^{54321540509508} is an apocalyptic number.

It is an amenable number.

54321540509508 is an abundant number, since it is smaller than the sum of its proper divisors (75793436738748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54321540509508 is a wasteful number, since it uses less digits than its factorization.

54321540509508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338502944 (or 338502942 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 51.

The spelling of 54321540509508 in words is "fifty-four trillion, three hundred twenty-one billion, five hundred forty million, five hundred nine thousand, five hundred eight".