55703643 has 4 divisors (see below), whose sum is σ = 74271528. Its totient is φ = 37135760.

The previous prime is 55703639. The next prime is 55703647. The reversal of 55703643 is 34630755.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55703639) and next prime (55703647).

It is a cyclic number.

It is not a de Polignac number, because 55703643 - 2² = 55703639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55703647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9283938 + ... + 9283943.

It is an arithmetic number, because the mean of its divisors is an integer number (18567882).

Almost surely, 2^55703643 is an apocalyptic number.

55703643 is a deficient number, since it is larger than the sum of its proper divisors (18567885).

55703643 is a wasteful number, since it uses less digits than its factorization.

55703643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18567884.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 55703643 is about 7463.4873216212. The cubic root of 55703643 is about 381.9101490018.

The spelling of 55703643 in words is "fifty-five million, seven hundred three thousand, six hundred forty-three".