542526645505 has 8 divisors (see below), whose sum is σ = 701111357352. Its totient is φ = 400635061248.

The previous prime is 542526645503. The next prime is 542526645533. The reversal of 542526645505 is 505546625245.

It can be written as a sum of positive squares in 4 ways, for example, as 1984078849 + 540542566656 = 44543^2 + 735216^2 .

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 542526645505 - 2¹ = 542526645503 is a prime.

It is a super-2 number, since 2×542526645505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542526645503) 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, 4173281824 + ... + 4173281953.

It is an arithmetic number, because the mean of its divisors is an integer number (87638919669).

Almost surely, 2^542526645505 is an apocalyptic number.

It is an amenable number.

542526645505 is a deficient number, since it is larger than the sum of its proper divisors (158584711847).

542526645505 is a wasteful number, since it uses less digits than its factorization.

542526645505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346563795.

The product of its (nonzero) digits is 7200000, while the sum is 49.

The spelling of 542526645505 in words is "five hundred forty-two billion, five hundred twenty-six million, six hundred forty-five thousand, five hundred five".