55726434 has 32 divisors (see below), whose sum is σ = 124501440. Its totient is φ = 18475776.

The previous prime is 55726427. The next prime is 55726469. The reversal of 55726434 is 43462755.

55726434 is a `hidden beast` number, since 5 + 5 + 7 + 2 + 643 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7749 + ... + 13095.

It is an arithmetic number, because the mean of its divisors is an integer number (3890670).

Almost surely, 2^55726434 is an apocalyptic number.

55726434 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55726434 is an abundant number, since it is smaller than the sum of its proper divisors (68775006).

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

55726434 is a wasteful number, since it uses less digits than its factorization.

55726434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551 (or 5545 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 55726434 is about 7465.0139986473. The cubic root of 55726434 is about 381.9622277464.

The spelling of 55726434 in words is "fifty-five million, seven hundred twenty-six thousand, four hundred thirty-four".