42465253 has 4 divisors (see below), whose sum is σ = 42482188. Its totient is φ = 42448320.

The previous prime is 42465239. The next prime is 42465259. The reversal of 42465253 is 35256424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32012964 + 10452289 = 5658^2 + 3233^2 .

It is a cyclic number.

It is not a de Polignac number, because 42465253 - 2¹³ = 42457061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42465259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3876 + ... + 9997.

It is an arithmetic number, because the mean of its divisors is an integer number (10620547).

Almost surely, 2^42465253 is an apocalyptic number.

It is an amenable number.

42465253 is a deficient number, since it is larger than the sum of its proper divisors (16935).

42465253 is a wasteful number, since it uses less digits than its factorization.

42465253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934.

The product of its digits is 28800, while the sum is 31.

The square root of 42465253 is about 6516.5368870283. The cubic root of 42465253 is about 348.8814713955.

It can be divided in two parts, 42 and 465253, that multiplied together give a triangular number (19540626 = T₆₂₅₁).

The spelling of 42465253 in words is "forty-two million, four hundred sixty-five thousand, two hundred fifty-three".