42557494520 has 32 divisors (see below), whose sum is σ = 95826967920. Its totient is φ = 17010090240.

The previous prime is 42557494487. The next prime is 42557494523. The reversal of 42557494520 is 2549475524.

It is a super-2 number, since 2×42557494520² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42557494523) 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, 349862 + ... + 455541.

Almost surely, 2^42557494520 is an apocalyptic number.

42557494520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42557494520 is an abundant number, since it is smaller than the sum of its proper divisors (53269473400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42557494520 is a wasteful number, since it uses less digits than its factorization.

42557494520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806735 (or 806731 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 42557494520 in words is "forty-two billion, five hundred fifty-seven million, four hundred ninety-four thousand, five hundred twenty".