42556264605 has 48 divisors (see below), whose sum is σ = 74266320960. Its totient is φ = 22542489600.

The previous prime is 42556264591. The next prime is 42556264609. The reversal of 42556264605 is 50646265524.

42556264605 is a `hidden beast` number, since 4 + 25 + 562 + 6 + 4 + 60 + 5 = 666.

It is not a de Polignac number, because 42556264605 - 2²⁶ = 42489155741 is a prime.

It is a super-2 number, since 2×42556264605² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42556264609) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7818685 + ... + 7824125.

It is an arithmetic number, because the mean of its divisors is an integer number (1547215020).

Almost surely, 2^42556264605 is an apocalyptic number.

42556264605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42556264605 is a deficient number, since it is larger than the sum of its proper divisors (31710056355).

42556264605 is a wasteful number, since it uses less digits than its factorization.

42556264605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602 (or 6599 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 42556264605 in words is "forty-two billion, five hundred fifty-six million, two hundred sixty-four thousand, six hundred five".