55725345 has 24 divisors (see below), whose sum is σ = 104021736. Its totient is φ = 27433728.

The previous prime is 55725331. The next prime is 55725379. The reversal of 55725345 is 54352755.

55725345 is a `hidden beast` number, since 55 + 72 + 534 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1083681 + 54641664 = 1041^2 + 7392^2 .

It is not a de Polignac number, because 55725345 - 2⁶ = 55725281 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 47044 + ... + 48213.

It is an arithmetic number, because the mean of its divisors is an integer number (4334239).

Almost surely, 2^55725345 is an apocalyptic number.

It is an amenable number.

55725345 is a deficient number, since it is larger than the sum of its proper divisors (48296391).

55725345 is a wasteful number, since it uses less digits than its factorization.

55725345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95281 (or 95278 counting only the distinct ones).

The product of its digits is 105000, while the sum is 36.

The square root of 55725345 is about 7464.9410580392. The cubic root of 55725345 is about 381.9597396419.

The spelling of 55725345 in words is "fifty-five million, seven hundred twenty-five thousand, three hundred forty-five".