42152517 has 12 divisors (see below), whose sum is σ = 66422304. Its totient is φ = 25546920.

The previous prime is 42152489. The next prime is 42152521. The reversal of 42152517 is 71525124.

It is not a de Polignac number, because 42152517 - 2⁷ = 42152389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42152017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212793 + ... + 212990.

It is an arithmetic number, because the mean of its divisors is an integer number (5535192).

Almost surely, 2^42152517 is an apocalyptic number.

It is an amenable number.

42152517 is a deficient number, since it is larger than the sum of its proper divisors (24269787).

42152517 is a wasteful number, since it uses less digits than its factorization.

42152517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425800 (or 425797 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 42152517 is about 6492.4969772808. The cubic root of 42152517 is about 348.0229126808.

The spelling of 42152517 in words is "forty-two million, one hundred fifty-two thousand, five hundred seventeen".