55750357 has 4 divisors (see below), whose sum is σ = 60038860. Its totient is φ = 51461856.

The previous prime is 55750301. The next prime is 55750393. The reversal of 55750357 is 75305755.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16924996 + 38825361 = 4114^2 + 6231^2 .

It is a cyclic number.

It is not a de Polignac number, because 55750357 - 2¹¹ = 55748309 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 (55750397) 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, 2144232 + ... + 2144257.

It is an arithmetic number, because the mean of its divisors is an integer number (15009715).

Almost surely, 2^55750357 is an apocalyptic number.

It is an amenable number.

55750357 is a deficient number, since it is larger than the sum of its proper divisors (4288503).

55750357 is a wasteful number, since it uses less digits than its factorization.

55750357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288502.

The product of its (nonzero) digits is 91875, while the sum is 37.

The square root of 55750357 is about 7466.6161679840. The cubic root of 55750357 is about 382.0168779034.

The spelling of 55750357 in words is "fifty-five million, seven hundred fifty thousand, three hundred fifty-seven".