55937729 has 8 divisors (see below), whose sum is σ = 59280000. Its totient is φ = 52635312.

The previous prime is 55937719. The next prime is 55937731. The reversal of 55937729 is 92773955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55937729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55937719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7049 + ... + 12710.

It is an arithmetic number, because the mean of its divisors is an integer number (7410000).

Almost surely, 2^55937729 is an apocalyptic number.

It is an amenable number.

55937729 is a deficient number, since it is larger than the sum of its proper divisors (3342271).

55937729 is a wasteful number, since it uses less digits than its factorization.

55937729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19927.

The product of its digits is 595350, while the sum is 47.

The square root of 55937729 is about 7479.1529600617. The cubic root of 55937729 is about 382.4443742710. Note that the first 3 decimals are identical.

The spelling of 55937729 in words is "fifty-five million, nine hundred thirty-seven thousand, seven hundred twenty-nine".