54675421 has 2 divisors, whose sum is σ = 54675422. Its totient is φ = 54675420.

The previous prime is 54675419. The next prime is 54675431. The reversal of 54675421 is 12457645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46090521 + 8584900 = 6789^2 + 2930^2 .

It is a cyclic number.

It is not a de Polignac number, because 54675421 - 2¹ = 54675419 is a prime.

Together with 54675419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54675431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27337710 + 27337711.

It is an arithmetic number, because the mean of its divisors is an integer number (27337711).

Almost surely, 2^54675421 is an apocalyptic number.

It is an amenable number.

54675421 is a deficient number, since it is larger than the sum of its proper divisors (1).

54675421 is an equidigital number, since it uses as much as digits as its factorization.

54675421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 34.

The square root of 54675421 is about 7394.2829943139. The cubic root of 54675421 is about 379.5456735538.

The spelling of 54675421 in words is "fifty-four million, six hundred seventy-five thousand, four hundred twenty-one".