54372551409 has 36 divisors (see below), whose sum is σ = 91405127268. Its totient is φ = 31014635520.

The previous prime is 54372551381. The next prime is 54372551413. The reversal of 54372551409 is 90415527345.

54372551409 is a `hidden beast` number, since 54 + 3 + 7 + 2 + 551 + 40 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23597568225 + 30774983184 = 153615^2 + 175428^2 .

It is not a de Polignac number, because 54372551409 - 2²⁰ = 54371502833 is a prime.

It is a super-3 number, since 3×54372551409³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (54372551449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1449984 + ... + 1487009.

It is an arithmetic number, because the mean of its divisors is an integer number (2539031313).

Almost surely, 2^54372551409 is an apocalyptic number.

It is an amenable number.

54372551409 is a deficient number, since it is larger than the sum of its proper divisors (37032575859).

54372551409 is a wasteful number, since it uses less digits than its factorization.

54372551409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937038 (or 2937024 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 54372551409 in words is "fifty-four billion, three hundred seventy-two million, five hundred fifty-one thousand, four hundred nine".