42125086 has 4 divisors (see below), whose sum is σ = 63187632. Its totient is φ = 21062542.

The previous prime is 42125077. The next prime is 42125087. The reversal of 42125086 is 68052124.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42125087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10531270 + ... + 10531273.

It is an arithmetic number, because the mean of its divisors is an integer number (15796908).

Almost surely, 2^42125086 is an apocalyptic number.

42125086 is a deficient number, since it is larger than the sum of its proper divisors (21062546).

42125086 is a wasteful number, since it uses less digits than its factorization.

42125086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21062545.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 42125086 is about 6490.3841180627. The cubic root of 42125086 is about 347.9474036422.

The spelling of 42125086 in words is "forty-two million, one hundred twenty-five thousand, eighty-six".