55565461 has 6 divisors (see below), whose sum is σ = 64637430. Its totient is φ = 47627496.

The previous prime is 55565431. The next prime is 55565467. The reversal of 55565461 is 16456555.

It can be written as a sum of positive squares in only one way, i.e., 44970436 + 10595025 = 6706^2 + 3255^2 .

It is not a de Polignac number, because 55565461 - 2²¹ = 53468309 is a prime.

It is a super-2 number, since 2×55565461² = 6175040912285042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55565461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55565467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 566946 + ... + 567043.

It is an arithmetic number, because the mean of its divisors is an integer number (10772905).

Almost surely, 2^55565461 is an apocalyptic number.

It is an amenable number.

55565461 is a deficient number, since it is larger than the sum of its proper divisors (9071969).

55565461 is a wasteful number, since it uses less digits than its factorization.

55565461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134003 (or 1133996 counting only the distinct ones).

The product of its digits is 90000, while the sum is 37.

The square root of 55565461 is about 7454.2243727969. The cubic root of 55565461 is about 381.5940906434.

It can be divided in two parts, 55 and 565461, that added together give a triangular number (565516 = T₁₀₆₃).

The spelling of 55565461 in words is "fifty-five million, five hundred sixty-five thousand, four hundred sixty-one".