54655631 has 2 divisors, whose sum is σ = 54655632. Its totient is φ = 54655630.

The previous prime is 54655619. The next prime is 54655637. The reversal of 54655631 is 13655645.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54655631 is a prime.

It is a super-2 number, since 2×54655631² = 5974476000016322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 54655591 and 54655600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54655637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27327815 + 27327816.

It is an arithmetic number, because the mean of its divisors is an integer number (27327816).

Almost surely, 2^54655631 is an apocalyptic number.

54655631 is a deficient number, since it is larger than the sum of its proper divisors (1).

54655631 is an equidigital number, since it uses as much as digits as its factorization.

54655631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 35.

The square root of 54655631 is about 7392.9446771905. The cubic root of 54655631 is about 379.4998753068.

The spelling of 54655631 in words is "fifty-four million, six hundred fifty-five thousand, six hundred thirty-one".