57542526581 has 8 divisors (see below), whose sum is σ = 57888206880. Its totient is φ = 57197839248.

The previous prime is 57542526571. The next prime is 57542526593. The reversal of 57542526581 is 18562524575.

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 57542526581 - 2³⁴ = 40362657397 is a prime.

It is a super-2 number, since 2×57542526581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57542526571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131831 + ... + 363956.

It is an arithmetic number, because the mean of its divisors is an integer number (7236025860).

Almost surely, 2^57542526581 is an apocalyptic number.

It is an amenable number.

57542526581 is a deficient number, since it is larger than the sum of its proper divisors (345680299).

57542526581 is a wasteful number, since it uses less digits than its factorization.

57542526581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496483.

The product of its digits is 3360000, while the sum is 50.

The spelling of 57542526581 in words is "fifty-seven billion, five hundred forty-two million, five hundred twenty-six thousand, five hundred eighty-one".