55705773 has 4 divisors (see below), whose sum is σ = 74274368. Its totient is φ = 37137180.

The previous prime is 55705751. The next prime is 55705807. The reversal of 55705773 is 37750755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55705773 - 2¹² = 55701677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55705733) 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, 9284293 + ... + 9284298.

It is an arithmetic number, because the mean of its divisors is an integer number (18568592).

Almost surely, 2^55705773 is an apocalyptic number.

It is an amenable number.

55705773 is a deficient number, since it is larger than the sum of its proper divisors (18568595).

55705773 is a wasteful number, since it uses less digits than its factorization.

55705773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18568594.

The product of its (nonzero) digits is 128625, while the sum is 39.

The square root of 55705773 is about 7463.6300149458. The cubic root of 55705773 is about 381.9150167759.

The spelling of 55705773 in words is "fifty-five million, seven hundred five thousand, seven hundred seventy-three".