553478478 has 32 divisors (see below), whose sum is σ = 1265829120. Its totient is φ = 158044800.

The previous prime is 553478477. The next prime is 553478479. The reversal of 553478478 is 874874355.

It is an interprime number because it is at equal distance from previous prime (553478477) and next prime (553478479).

It is a self number, because there is not a number n which added to its sum of digits gives 553478478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553478473) 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, 107053 + ... + 112103.

It is an arithmetic number, because the mean of its divisors is an integer number (39557160).

Almost surely, 2^553478478 is an apocalyptic number.

553478478 is an abundant number, since it is smaller than the sum of its proper divisors (712350642).

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

553478478 is a wasteful number, since it uses less digits than its factorization.

553478478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7672.

The product of its digits is 3763200, while the sum is 51.

The square root of 553478478 is about 23526.1233100568. The cubic root of 553478478 is about 821.0449092525.

The spelling of 553478478 in words is "five hundred fifty-three million, four hundred seventy-eight thousand, four hundred seventy-eight".