553978898 has 54 divisors (see below), whose sum is σ = 981291423. Its totient is φ = 234333440.

The previous prime is 553978861. The next prime is 553978937. The reversal of 553978898 is 898879355.

It can be written as a sum of positive squares in 5 ways, for example, as 256864729 + 297114169 = 16027^2 + 17237^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=16643.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 553978898.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6224438 + ... + 6224526.

Almost surely, 2^553978898 is an apocalyptic number.

553978898 is a deficient number, since it is larger than the sum of its proper divisors (427312525).

553978898 is a wasteful number, since it uses less digits than its factorization.

553978898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 119 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 62.

The square root of 553978898 is about 23536.7563185754. The cubic root of 553978898 is about 821.2922802256.

The spelling of 553978898 in words is "five hundred fifty-three million, nine hundred seventy-eight thousand, eight hundred ninety-eight".