42251555101 has 4 divisors (see below), whose sum is σ = 48287491552. Its totient is φ = 36215618652.

The previous prime is 42251555063. The next prime is 42251555113. The reversal of 42251555101 is 10155515224.

42251555101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42251555101 - 2¹¹ = 42251553053 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 (42251555161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3017968215 + ... + 3017968228.

It is an arithmetic number, because the mean of its divisors is an integer number (12071872888).

Almost surely, 2^42251555101 is an apocalyptic number.

It is an amenable number.

42251555101 is a deficient number, since it is larger than the sum of its proper divisors (6035936451).

42251555101 is an equidigital number, since it uses as much as digits as its factorization.

42251555101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035936450.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 42251555101 in words is "forty-two billion, two hundred fifty-one million, five hundred fifty-five thousand, one hundred one".