55440529 has 2 divisors, whose sum is σ = 55440530. Its totient is φ = 55440528.

The previous prime is 55440527. The next prime is 55440533. The reversal of 55440529 is 92504455.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52533504 + 2907025 = 7248^2 + 1705^2 .

It is a cyclic number.

It is not a de Polignac number, because 55440529 - 2¹ = 55440527 is a prime.

Together with 55440527, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 55440494 and 55440503.

It is not a weakly prime, because it can be changed into another prime (55440523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27720264 + 27720265.

It is an arithmetic number, because the mean of its divisors is an integer number (27720265).

Almost surely, 2^55440529 is an apocalyptic number.

It is an amenable number.

55440529 is a deficient number, since it is larger than the sum of its proper divisors (1).

55440529 is an equidigital number, since it uses as much as digits as its factorization.

55440529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 55440529 is about 7445.8397108721. The cubic root of 55440529 is about 381.3078871522.

The spelling of 55440529 in words is "fifty-five million, four hundred forty thousand, five hundred twenty-nine".