55725307 has 8 divisors (see below), whose sum is σ = 61699392. Its totient is φ = 49902600.

The previous prime is 55725301. The next prime is 55725317. The reversal of 55725307 is 70352755.

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

It is not a de Polignac number, because 55725307 - 2¹⁹ = 55201019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55725301) 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, 37069 + ... + 38542.

It is an arithmetic number, because the mean of its divisors is an integer number (7712424).

Almost surely, 2^55725307 is an apocalyptic number.

55725307 is a deficient number, since it is larger than the sum of its proper divisors (5974085).

55725307 is a wasteful number, since it uses less digits than its factorization.

55725307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75689.

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 55725307 is about 7464.9385128077. The cubic root of 55725307 is about 381.9596528204.

The spelling of 55725307 in words is "fifty-five million, seven hundred twenty-five thousand, three hundred seven".