55724061 has 4 divisors (see below), whose sum is σ = 74298752. Its totient is φ = 37149372.

The previous prime is 55724033. The next prime is 55724077. The reversal of 55724061 is 16042755.

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 55724061 - 2⁷ = 55723933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55724161) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9287341 + ... + 9287346.

It is an arithmetic number, because the mean of its divisors is an integer number (18574688).

Almost surely, 2^55724061 is an apocalyptic number.

It is an amenable number.

55724061 is a deficient number, since it is larger than the sum of its proper divisors (18574691).

55724061 is a wasteful number, since it uses less digits than its factorization.

55724061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18574690.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 55724061 is about 7464.8550555252. The cubic root of 55724061 is about 381.9568059674.

The spelling of 55724061 in words is "fifty-five million, seven hundred twenty-four thousand, sixty-one".