42611265 has 48 divisors (see below), whose sum is σ = 81139968. Its totient is φ = 21378816.

The previous prime is 42611251. The next prime is 42611321. The reversal of 42611265 is 56211624.

42611265 is a `hidden beast` number, since 42 + 611 + 2 + 6 + 5 = 666.

It is not a de Polignac number, because 42611265 - 2¹⁶ = 42545729 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19624 + ... + 21686.

It is an arithmetic number, because the mean of its divisors is an integer number (1690416).

Almost surely, 2^42611265 is an apocalyptic number.

42611265 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42611265 is a deficient number, since it is larger than the sum of its proper divisors (38528703).

42611265 is a wasteful number, since it uses less digits than its factorization.

42611265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100 (or 2088 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 42611265 is about 6527.7304631855. The cubic root of 42611265 is about 349.2808772175.

Adding to 42611265 its reverse (56211624), we get a palindrome (98822889).

The spelling of 42611265 in words is "forty-two million, six hundred eleven thousand, two hundred sixty-five".