55403713 has 4 divisors (see below), whose sum is σ = 55775700. Its totient is φ = 55031728.

The previous prime is 55403701. The next prime is 55403723. The reversal of 55403713 is 31730455.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17740944 + 37662769 = 4212^2 + 6137^2 .

It is a cyclic number.

It is not a de Polignac number, because 55403713 - 2¹³ = 55395521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55403723) 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, 185770 + ... + 186067.

It is an arithmetic number, because the mean of its divisors is an integer number (13943925).

Almost surely, 2^55403713 is an apocalyptic number.

It is an amenable number.

55403713 is a deficient number, since it is larger than the sum of its proper divisors (371987).

55403713 is a wasteful number, since it uses less digits than its factorization.

55403713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371986.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 55403713 is about 7443.3670472441. The cubic root of 55403713 is about 381.2234643181.

The spelling of 55403713 in words is "fifty-five million, four hundred three thousand, seven hundred thirteen".