55722829 has 8 divisors (see below), whose sum is σ = 56936088. Its totient is φ = 54519360.

The previous prime is 55722827. The next prime is 55722869. The reversal of 55722829 is 92822755.

It can be written as a sum of positive squares in 4 ways, for example, as 4313929 + 51408900 = 2077^2 + 7170^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55722829 - 2¹ = 55722827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55722791 and 55722800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55722827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9699 + ... + 14335.

It is an arithmetic number, because the mean of its divisors is an integer number (7117011).

Almost surely, 2^55722829 is an apocalyptic number.

It is an amenable number.

55722829 is a deficient number, since it is larger than the sum of its proper divisors (1213259).

55722829 is a wasteful number, since it uses less digits than its factorization.

55722829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895.

The product of its digits is 100800, while the sum is 40.

The square root of 55722829 is about 7464.7725350475. The cubic root of 55722829 is about 381.9539910598.

The spelling of 55722829 in words is "fifty-five million, seven hundred twenty-two thousand, eight hundred twenty-nine".