42125445501 has 32 divisors (see below), whose sum is σ = 58828560000. Its totient is φ = 26779189248.

The previous prime is 42125445491. The next prime is 42125445503. The reversal of 42125445501 is 10554452124.

It is a happy number.

It is not a de Polignac number, because 42125445501 - 2⁵ = 42125445469 is a prime.

It is a super-2 number, since 2×42125445501² (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 (42125445503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2324925 + ... + 2342973.

It is an arithmetic number, because the mean of its divisors is an integer number (1838392500).

Almost surely, 2^42125445501 is an apocalyptic number.

It is an amenable number.

42125445501 is a deficient number, since it is larger than the sum of its proper divisors (16703114499).

42125445501 is a wasteful number, since it uses less digits than its factorization.

42125445501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18413.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 42125445501 its reverse (10554452124), we get a palindrome (52679897625).

The spelling of 42125445501 in words is "forty-two billion, one hundred twenty-five million, four hundred forty-five thousand, five hundred one".