54852742621 has 4 divisors (see below), whose sum is σ = 54854157244. Its totient is φ = 54851328000.

The previous prime is 54852742601. The next prime is 54852742643. The reversal of 54852742621 is 12624725845.

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 5261906521 + 49590836100 = 72539^2 + 222690^2 .

It is a cyclic number.

It is not a de Polignac number, because 54852742621 - 2¹¹ = 54852740573 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 (54852742601) 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, 647460 + ... + 727261.

It is an arithmetic number, because the mean of its divisors is an integer number (13713539311).

Almost surely, 2^54852742621 is an apocalyptic number.

It is an amenable number.

54852742621 is a deficient number, since it is larger than the sum of its proper divisors (1414623).

54852742621 is a wasteful number, since it uses less digits than its factorization.

54852742621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414622.

The product of its digits is 1075200, while the sum is 46.

The spelling of 54852742621 in words is "fifty-four billion, eight hundred fifty-two million, seven hundred forty-two thousand, six hundred twenty-one".