55261471 has 2 divisors, whose sum is σ = 55261472. Its totient is φ = 55261470.

The previous prime is 55261463. The next prime is 55261487. The reversal of 55261471 is 17416255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55261471 - 2³ = 55261463 is a prime.

It is a super-3 number, since 3×55261471³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55261421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27630735 + 27630736.

It is an arithmetic number, because the mean of its divisors is an integer number (27630736).

Almost surely, 2^55261471 is an apocalyptic number.

55261471 is a deficient number, since it is larger than the sum of its proper divisors (1).

55261471 is an equidigital number, since it uses as much as digits as its factorization.

55261471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 55261471 is about 7433.8059565743. The cubic root of 55261471 is about 380.8969371025.

The spelling of 55261471 in words is "fifty-five million, two hundred sixty-one thousand, four hundred seventy-one".