42125265 has 112 divisors (see below), whose sum is σ = 94015488. Its totient is φ = 17635968.

The previous prime is 42125227. The next prime is 42125267. The reversal of 42125265 is 56252124.

It is not a de Polignac number, because 42125265 - 2⁷ = 42125137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42125267) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 331632 + ... + 331758.

It is an arithmetic number, because the mean of its divisors is an integer number (839424).

Almost surely, 2^42125265 is an apocalyptic number.

42125265 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42125265 is an abundant number, since it is smaller than the sum of its proper divisors (51890223).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42125265 is a wasteful number, since it uses less digits than its factorization.

42125265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 155 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 42125265 is about 6490.3979076787. The cubic root of 42125265 is about 347.9478964799.

Adding to 42125265 its reverse (56252124), we get a palindrome (98377389).

The spelling of 42125265 in words is "forty-two million, one hundred twenty-five thousand, two hundred sixty-five".