55773430 has 32 divisors (see below), whose sum is σ = 109182816. Its totient is φ = 20427264.

The previous prime is 55773373. The next prime is 55773449. The reversal of 55773430 is 3437755.

55773430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55773430² = 6221350987929800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1857 + ... + 10723.

It is an arithmetic number, because the mean of its divisors is an integer number (3411963).

Almost surely, 2^55773430 is an apocalyptic number.

55773430 is a deficient number, since it is larger than the sum of its proper divisors (53409386).

55773430 is a wasteful number, since it uses less digits than its factorization.

55773430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8928.

The product of its (nonzero) digits is 44100, while the sum is 34.

The square root of 55773430 is about 7468.1610855685. The cubic root of 55773430 is about 382.0695714957.

The spelling of 55773430 in words is "fifty-five million, seven hundred seventy-three thousand, four hundred thirty".