54621407 has 2 divisors, whose sum is σ = 54621408. Its totient is φ = 54621406.

The previous prime is 54621403. The next prime is 54621419. The reversal of 54621407 is 70412645.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54621407 - 2² = 54621403 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54621407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54621403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27310703 + 27310704.

It is an arithmetic number, because the mean of its divisors is an integer number (27310704).

Almost surely, 2^54621407 is an apocalyptic number.

54621407 is a deficient number, since it is larger than the sum of its proper divisors (1).

54621407 is an equidigital number, since it uses as much as digits as its factorization.

54621407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 54621407 is about 7390.6296754742. The cubic root of 54621407 is about 379.4206476325.

The spelling of 54621407 in words is "fifty-four million, six hundred twenty-one thousand, four hundred seven".