53633403 has 24 divisors (see below), whose sum is σ = 79438320. Its totient is φ = 34856640.

The previous prime is 53633399. The next prime is 53633417. The reversal of 53633403 is 30433635.

It is not a de Polignac number, because 53633403 - 2² = 53633399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53633473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108988 + ... + 109478.

It is an arithmetic number, because the mean of its divisors is an integer number (3309930).

Almost surely, 2^53633403 is an apocalyptic number.

53633403 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

53633403 is a deficient number, since it is larger than the sum of its proper divisors (25804917).

53633403 is a wasteful number, since it uses less digits than its factorization.

53633403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 27.

The square root of 53633403 is about 7323.4829828436. The cubic root of 53633403 is about 377.1190326474.

The spelling of 53633403 in words is "fifty-three million, six hundred thirty-three thousand, four hundred three".