57245555247 has 8 divisors (see below), whose sum is σ = 76813569456. Its totient is φ = 37920622272.

The previous prime is 57245555243. The next prime is 57245555249. The reversal of 57245555247 is 74255554275.

It is a happy number.

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

It is not a de Polignac number, because 57245555247 - 2² = 57245555243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57245555247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57245555243) 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, 60769758 + ... + 60770699.

It is an arithmetic number, because the mean of its divisors is an integer number (9601696182).

Almost surely, 2^57245555247 is an apocalyptic number.

57245555247 is a deficient number, since it is larger than the sum of its proper divisors (19568014209).

57245555247 is a wasteful number, since it uses less digits than its factorization.

57245555247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121540617.

The product of its digits is 9800000, while the sum is 51.

The spelling of 57245555247 in words is "fifty-seven billion, two hundred forty-five million, five hundred fifty-five thousand, two hundred forty-seven".