54252555421 has 4 divisors (see below), whose sum is σ = 54286828992. Its totient is φ = 54218281852.

The previous prime is 54252555403. The next prime is 54252555431. The reversal of 54252555421 is 12455525245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12455525245 = 5 ⋅2491105049.

It is a cyclic number.

It is not a de Polignac number, because 54252555421 - 2¹³ = 54252547229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54252555431) 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, 17134411 + ... + 17137576.

It is an arithmetic number, because the mean of its divisors is an integer number (13571707248).

Almost surely, 2^54252555421 is an apocalyptic number.

It is an amenable number.

54252555421 is a deficient number, since it is larger than the sum of its proper divisors (34273571).

54252555421 is a wasteful number, since it uses less digits than its factorization.

54252555421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34273570.

The product of its digits is 400000, while the sum is 40.

The spelling of 54252555421 in words is "fifty-four billion, two hundred fifty-two million, five hundred fifty-five thousand, four hundred twenty-one".