42125155 has 8 divisors (see below), whose sum is σ = 50621184. Its totient is φ = 33652800.

The previous prime is 42125137. The next prime is 42125159. The reversal of 42125155 is 55152124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-42125155 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42125159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1731 + ... + 9340.

It is an arithmetic number, because the mean of its divisors is an integer number (6327648).

Almost surely, 2^42125155 is an apocalyptic number.

42125155 is a deficient number, since it is larger than the sum of its proper divisors (8496029).

42125155 is a wasteful number, since it uses less digits than its factorization.

42125155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11837.

The product of its digits is 2000, while the sum is 25.

The square root of 42125155 is about 6490.3894336164. The cubic root of 42125155 is about 347.9475936189.

Adding to 42125155 its reverse (55152124), we get a palindrome (97277279).

The spelling of 42125155 in words is "forty-two million, one hundred twenty-five thousand, one hundred fifty-five".