553640442 has 16 divisors (see below), whose sum is σ = 1107548640. Its totient is φ = 184502192.

The previous prime is 553640413. The next prime is 553640471. The reversal of 553640442 is 244046355.

It is an interprime number because it is at equal distance from previous prime (553640413) and next prime (553640471).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24484 + ... + 41312.

It is an arithmetic number, because the mean of its divisors is an integer number (69221790).

Almost surely, 2^553640442 is an apocalyptic number.

553640442 is an abundant number, since it is smaller than the sum of its proper divisors (553908198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

553640442 is a wasteful number, since it uses less digits than its factorization.

553640442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22317.

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 553640442 is about 23529.5652743522. The cubic root of 553640442 is about 821.1249886978.

Adding to 553640442 its reverse (244046355), we get a palindrome (797686797).

The spelling of 553640442 in words is "five hundred fifty-three million, six hundred forty thousand, four hundred forty-two".