42145251055 has 32 divisors (see below), whose sum is σ = 54819616320. Its totient is φ = 30987601920.

The previous prime is 42145251023. The next prime is 42145251061. The reversal of 42145251055 is 55015254124.

It is not a de Polignac number, because 42145251055 - 2⁵ = 42145251023 is a prime.

It is a super-2 number, since 2×42145251055² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42145251055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691477 + ... + 749953.

It is an arithmetic number, because the mean of its divisors is an integer number (1713113010).

Almost surely, 2^42145251055 is an apocalyptic number.

42145251055 is a deficient number, since it is larger than the sum of its proper divisors (12674365265).

42145251055 is a wasteful number, since it uses less digits than its factorization.

42145251055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58699.

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 42145251055 in words is "forty-two billion, one hundred forty-five million, two hundred fifty-one thousand, fifty-five".