55240529 has 2 divisors, whose sum is σ = 55240530. Its totient is φ = 55240528.

The previous prime is 55240517. The next prime is 55240547. The reversal of 55240529 is 92504255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36300625 + 18939904 = 6025^2 + 4352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55240529 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55240495 and 55240504.

It is not a weakly prime, because it can be changed into another prime (55240589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27620264 + 27620265.

It is an arithmetic number, because the mean of its divisors is an integer number (27620265).

Almost surely, 2^55240529 is an apocalyptic number.

It is an amenable number.

55240529 is a deficient number, since it is larger than the sum of its proper divisors (1).

55240529 is an equidigital number, since it uses as much as digits as its factorization.

55240529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 55240529 is about 7432.3972579512. The cubic root of 55240529 is about 380.8488158626.

The spelling of 55240529 in words is "fifty-five million, two hundred forty thousand, five hundred twenty-nine".