553464778 has 16 divisors (see below), whose sum is σ = 871145280. Its totient is φ = 263217856.

The previous prime is 553464763. The next prime is 553464799. The reversal of 553464778 is 877464355.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25375 + ... + 41842.

It is an arithmetic number, because the mean of its divisors is an integer number (54446580).

Almost surely, 2^553464778 is an apocalyptic number.

553464778 is a deficient number, since it is larger than the sum of its proper divisors (317680502).

553464778 is a wasteful number, since it uses less digits than its factorization.

553464778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67421.

The product of its digits is 2822400, while the sum is 49.

The square root of 553464778 is about 23525.8321425619. The cubic root of 553464778 is about 821.0381348801.

The spelling of 553464778 in words is "five hundred fifty-three million, four hundred sixty-four thousand, seven hundred seventy-eight".