57487525381 has 32 divisors (see below), whose sum is σ = 68053708800. Its totient is φ = 47874214080.

The previous prime is 57487525379. The next prime is 57487525399. The reversal of 57487525381 is 18352578475.

It is a happy number.

It is not a de Polignac number, because 57487525381 - 2¹ = 57487525379 is a prime.

It is a super-2 number, since 2×57487525381² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57487585381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10489600 + ... + 10495078.

It is an arithmetic number, because the mean of its divisors is an integer number (2126678400).

Almost surely, 2^57487525381 is an apocalyptic number.

It is an amenable number.

57487525381 is a deficient number, since it is larger than the sum of its proper divisors (10566183419).

57487525381 is a wasteful number, since it uses less digits than its factorization.

57487525381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6049.

The product of its digits is 9408000, while the sum is 55.

The spelling of 57487525381 in words is "fifty-seven billion, four hundred eighty-seven million, five hundred twenty-five thousand, three hundred eighty-one".