55405436 has 12 divisors (see below), whose sum is σ = 101175312. Its totient is φ = 26498208.

The previous prime is 55405417. The next prime is 55405447. The reversal of 55405436 is 63450455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301025 + ... + 301208.

It is an arithmetic number, because the mean of its divisors is an integer number (8431276).

Almost surely, 2^55405436 is an apocalyptic number.

It is an amenable number.

55405436 is a deficient number, since it is larger than the sum of its proper divisors (45769876).

55405436 is a wasteful number, since it uses less digits than its factorization.

55405436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602260 (or 602258 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 55405436 is about 7443.4827869755. The cubic root of 55405436 is about 381.2274161665.

The spelling of 55405436 in words is "fifty-five million, four hundred five thousand, four hundred thirty-six".