55475029 has 4 divisors (see below), whose sum is σ = 58738284. Its totient is φ = 52211776.

The previous prime is 55474987. The next prime is 55475051. The reversal of 55475029 is 92057455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47238129 + 8236900 = 6873^2 + 2870^2 .

It is a cyclic number.

It is not a de Polignac number, because 55475029 - 2²³ = 47086421 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 (55475059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631602 + ... + 1631635.

It is an arithmetic number, because the mean of its divisors is an integer number (14684571).

Almost surely, 2^55475029 is an apocalyptic number.

It is an amenable number.

55475029 is a deficient number, since it is larger than the sum of its proper divisors (3263255).

55475029 is a wasteful number, since it uses less digits than its factorization.

55475029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263254.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 55475029 is about 7448.1560805343. The cubic root of 55475029 is about 381.3869652474.

The spelling of 55475029 in words is "fifty-five million, four hundred seventy-five thousand, twenty-nine".