55750775 has 24 divisors (see below), whose sum is σ = 71610000. Its totient is φ = 43027200.

The previous prime is 55750729. The next prime is 55750777. The reversal of 55750775 is 57705755.

It is not a de Polignac number, because 55750775 - 2¹⁰ = 55749751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

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 23 ways as a sum of consecutive naturals, for example, 111476 + ... + 111974.

It is an arithmetic number, because the mean of its divisors is an integer number (2983750).

Almost surely, 2^55750775 is an apocalyptic number.

55750775 is a deficient number, since it is larger than the sum of its proper divisors (15859225).

55750775 is a wasteful number, since it uses less digits than its factorization.

55750775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 654 counting only the distinct ones).

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

The square root of 55750775 is about 7466.6441591923. The cubic root of 55750775 is about 382.0178326516.

The spelling of 55750775 in words is "fifty-five million, seven hundred fifty thousand, seven hundred seventy-five".