55252443257 has 8 divisors (see below), whose sum is σ = 63821004192. Its totient is φ = 47274817600.

The previous prime is 55252443217. The next prime is 55252443277. The reversal of 55252443257 is 75234425255.

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

It is a cyclic number.

It is not a de Polignac number, because 55252443257 - 2¹⁰ = 55252442233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55252443217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147733619 + ... + 147733992.

It is an arithmetic number, because the mean of its divisors is an integer number (7977625524).

Almost surely, 2^55252443257 is an apocalyptic number.

It is an amenable number.

55252443257 is a deficient number, since it is larger than the sum of its proper divisors (8568560935).

55252443257 is a wasteful number, since it uses less digits than its factorization.

55252443257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295467639.

The product of its digits is 1680000, while the sum is 44.

The spelling of 55252443257 in words is "fifty-five billion, two hundred fifty-two million, four hundred forty-three thousand, two hundred fifty-seven".