54615354121 has 4 divisors (see below), whose sum is σ = 54616007700. Its totient is φ = 54614700544.

The previous prime is 54615354119. The next prime is 54615354179. The reversal of 54615354121 is 12145351645.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49945545225 + 4669808896 = 223485^2 + 68336^2 .

It is a cyclic number.

It is not a de Polignac number, because 54615354121 - 2¹ = 54615354119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54615355121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179236 + ... + 375973.

It is an arithmetic number, because the mean of its divisors is an integer number (13654001925).

Almost surely, 2^54615354121 is an apocalyptic number.

It is an amenable number.

54615354121 is a deficient number, since it is larger than the sum of its proper divisors (653579).

54615354121 is an equidigital number, since it uses as much as digits as its factorization.

54615354121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653578.

The product of its digits is 72000, while the sum is 37.

The spelling of 54615354121 in words is "fifty-four billion, six hundred fifteen million, three hundred fifty-four thousand, one hundred twenty-one".