55529371 has 4 divisors (see below), whose sum is σ = 55687032. Its totient is φ = 55371712.

The previous prime is 55529363. The next prime is 55529377. The reversal of 55529371 is 17392555.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55529371 - 2³ = 55529363 is a prime.

It is a super-2 number, since 2×55529371² = 6167022087311282, 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 55529371.

It is not an unprimeable number, because it can be changed into a prime (55529377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78301 + ... + 79006.

It is an arithmetic number, because the mean of its divisors is an integer number (13921758).

Almost surely, 2^55529371 is an apocalyptic number.

55529371 is a deficient number, since it is larger than the sum of its proper divisors (157661).

55529371 is a wasteful number, since it uses less digits than its factorization.

55529371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157660.

The product of its digits is 47250, while the sum is 37.

The square root of 55529371 is about 7451.8032045942. The cubic root of 55529371 is about 381.5114570964.

The spelling of 55529371 in words is "fifty-five million, five hundred twenty-nine thousand, three hundred seventy-one".