55560739 has 4 divisors (see below), whose sum is σ = 59834656. Its totient is φ = 51286824.

The previous prime is 55560719. The next prime is 55560763. The reversal of 55560739 is 93706555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93706555 = 5 ⋅18741311.

It is a cyclic number.

It is not a de Polignac number, because 55560739 - 2⁵ = 55560707 is a prime.

It is a super-2 number, since 2×55560739² = 6173991436452242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55560719) 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, 2136939 + ... + 2136964.

It is an arithmetic number, because the mean of its divisors is an integer number (14958664).

Almost surely, 2^55560739 is an apocalyptic number.

55560739 is a deficient number, since it is larger than the sum of its proper divisors (4273917).

55560739 is a wasteful number, since it uses less digits than its factorization.

55560739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273916.

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 55560739 is about 7453.9076329131. The cubic root of 55560739 is about 381.5832809407.

The spelling of 55560739 in words is "fifty-five million, five hundred sixty thousand, seven hundred thirty-nine".