53553406 has 4 divisors (see below), whose sum is σ = 80330112. Its totient is φ = 26776702.

The previous prime is 53553377. The next prime is 53553413. The reversal of 53553406 is 60435535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60435535 = 5 ⋅12087107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13388350 + ... + 13388353.

It is an arithmetic number, because the mean of its divisors is an integer number (20082528).

Almost surely, 2^53553406 is an apocalyptic number.

53553406 is a deficient number, since it is larger than the sum of its proper divisors (26776706).

53553406 is a wasteful number, since it uses less digits than its factorization.

53553406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26776705.

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 53553406 is about 7318.0192675341. The cubic root of 53553406 is about 376.9314418225.

The spelling of 53553406 in words is "fifty-three million, five hundred fifty-three thousand, four hundred six".