55729061 has 4 divisors (see below), whose sum is σ = 55777824. Its totient is φ = 55680300.

The previous prime is 55729031. The next prime is 55729087. The reversal of 55729061 is 16092755.

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 a cyclic number.

It is not a de Polignac number, because 55729061 - 2¹⁴ = 55712677 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 (55729021) 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, 22625 + ... + 24966.

It is an arithmetic number, because the mean of its divisors is an integer number (13944456).

Almost surely, 2^55729061 is an apocalyptic number.

It is an amenable number.

55729061 is a deficient number, since it is larger than the sum of its proper divisors (48763).

55729061 is a wasteful number, since it uses less digits than its factorization.

55729061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48762.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 55729061 is about 7465.1899506978. The cubic root of 55729061 is about 381.9682296796.

The spelling of 55729061 in words is "fifty-five million, seven hundred twenty-nine thousand, sixty-one".