552040521 has 16 divisors (see below), whose sum is σ = 764467200. Its totient is φ = 354086288.

The previous prime is 552040519. The next prime is 552040547. The reversal of 552040521 is 125040255.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 552040521 - 2¹ = 552040519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 552040491 and 552040500.

It is not an unprimeable number, because it can be changed into a prime (552040501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24861 + ... + 41498.

It is an arithmetic number, because the mean of its divisors is an integer number (47779200).

Almost surely, 2^552040521 is an apocalyptic number.

It is an amenable number.

552040521 is a deficient number, since it is larger than the sum of its proper divisors (212426679).

552040521 is a wasteful number, since it uses less digits than its factorization.

552040521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66468.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 552040521 is about 23495.5425772635. The cubic root of 552040521 is about 820.3332578591. Note that the first 3 decimals are identical.

Adding to 552040521 its reverse (125040255), we get a palindrome (677080776).

The spelling of 552040521 in words is "five hundred fifty-two million, forty thousand, five hundred twenty-one".