55471293 has 12 divisors (see below), whose sum is σ = 80952508. Its totient is φ = 36599040.

The previous prime is 55471291. The next prime is 55471363. The reversal of 55471293 is 39217455.

55471293 is a `hidden beast` number, since 554 + 7 + 12 + 93 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35784324 + 19686969 = 5982^2 + 4437^2 .

It is not a de Polignac number, because 55471293 - 2¹ = 55471291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55471291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30898 + ... + 32643.

Almost surely, 2^55471293 is an apocalyptic number.

It is an amenable number.

55471293 is a deficient number, since it is larger than the sum of its proper divisors (25481215).

55471293 is a wasteful number, since it uses less digits than its factorization.

55471293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63644 (or 63641 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 55471293 is about 7447.9052759820. The cubic root of 55471293 is about 381.3784034752.

The spelling of 55471293 in words is "fifty-five million, four hundred seventy-one thousand, two hundred ninety-three".