55406071 has 16 divisors (see below), whose sum is σ = 66860800. Its totient is φ = 44851968.

The previous prime is 55405993. The next prime is 55406081. The reversal of 55406071 is 17060455.

It is not a de Polignac number, because 55406071 - 2⁷ = 55405943 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 (55406081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81991 + ... + 82663.

It is an arithmetic number, because the mean of its divisors is an integer number (4178800).

Almost surely, 2^55406071 is an apocalyptic number.

55406071 is a deficient number, since it is larger than the sum of its proper divisors (11454729).

55406071 is a wasteful number, since it uses less digits than its factorization.

55406071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 55406071 is about 7443.5254416170. The cubic root of 55406071 is about 381.2288725728.

It can be divided in two parts, 5540 and 6071, that added together give a palindrome (11611).

The spelling of 55406071 in words is "fifty-five million, four hundred six thousand, seventy-one".