53554428 has 18 divisors (see below), whose sum is σ = 135373784. Its totient is φ = 17851464.

The previous prime is 53554421. The next prime is 53554439. The reversal of 53554428 is 82445535.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1487623 = 53554428 / (5 + 3 + 5 + 5 + 4 + 4 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 53554392 and 53554401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53554421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 743776 + ... + 743847.

Almost surely, 2^53554428 is an apocalyptic number.

It is an amenable number.

53554428 is an abundant number, since it is smaller than the sum of its proper divisors (81819356).

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

53554428 is a wasteful number, since it uses less digits than its factorization.

53554428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487633 (or 1487628 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 53554428 is about 7318.0890948389. The cubic root of 53554428 is about 376.9338395628.

The spelling of 53554428 in words is "fifty-three million, five hundred fifty-four thousand, four hundred twenty-eight".