42254155021 has 8 divisors (see below), whose sum is σ = 46275737760. Its totient is φ = 38342752752.

The previous prime is 42254155019. The next prime is 42254155037. The reversal of 42254155021 is 12055145224.

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 42254155021 - 2¹ = 42254155019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42254155001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27544315 + ... + 27545848.

It is an arithmetic number, because the mean of its divisors is an integer number (5784467220).

Almost surely, 2^42254155021 is an apocalyptic number.

It is an amenable number.

42254155021 is a deficient number, since it is larger than the sum of its proper divisors (4021582739).

42254155021 is a wasteful number, since it uses less digits than its factorization.

42254155021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55090235.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 42254155021 in words is "forty-two billion, two hundred fifty-four million, one hundred fifty-five thousand, twenty-one".