55750757 has 8 divisors (see below), whose sum is σ = 57156120. Its totient is φ = 54362880.

The previous prime is 55750729. The next prime is 55750777. The reversal of 55750757 is 75705755.

It can be written as a sum of positive squares in 4 ways, for example, as 857476 + 54893281 = 926^2 + 7409^2 .

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-55750757 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 (55750777) 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, 2207 + ... + 10787.

It is an arithmetic number, because the mean of its divisors is an integer number (7144515).

Almost surely, 2^55750757 is an apocalyptic number.

It is an amenable number.

55750757 is a deficient number, since it is larger than the sum of its proper divisors (1405363).

55750757 is an equidigital number, since it uses as much as digits as its factorization.

55750757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8743.

The product of its (nonzero) digits is 214375, while the sum is 41.

The square root of 55750757 is about 7466.6429538314. The cubic root of 55750757 is about 382.0177915382.

The spelling of 55750757 in words is "fifty-five million, seven hundred fifty thousand, seven hundred fifty-seven".