54452445521 has 4 divisors (see below), whose sum is σ = 54594619392. Its totient is φ = 54310271652.

The previous prime is 54452445473. The next prime is 54452445547. The reversal of 54452445521 is 12554425445.

54452445521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54452445521 is a prime.

It is a super-2 number, since 2×54452445521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54452445571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71086361 + ... + 71087126.

It is an arithmetic number, because the mean of its divisors is an integer number (13648654848).

Almost surely, 2^54452445521 is an apocalyptic number.

It is an amenable number.

54452445521 is a deficient number, since it is larger than the sum of its proper divisors (142173871).

54452445521 is a wasteful number, since it uses less digits than its factorization.

54452445521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142173870.

The product of its digits is 640000, while the sum is 41.

The spelling of 54452445521 in words is "fifty-four billion, four hundred fifty-two million, four hundred forty-five thousand, five hundred twenty-one".