42252515 has 8 divisors (see below), whose sum is σ = 50737968. Its totient is φ = 33778720.

The previous prime is 42252499. The next prime is 42252547. The reversal of 42252515 is 51525224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42252515 - 2⁴ = 42252499 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12164 + ... + 15246.

It is an arithmetic number, because the mean of its divisors is an integer number (6342246).

Almost surely, 2^42252515 is an apocalyptic number.

42252515 is a deficient number, since it is larger than the sum of its proper divisors (8485453).

42252515 is a wasteful number, since it uses less digits than its factorization.

42252515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5829.

The product of its digits is 4000, while the sum is 26.

The square root of 42252515 is about 6500.1934586595. The cubic root of 42252515 is about 348.2978991196.

Adding to 42252515 its reverse (51525224), we get a palindrome (93777739).

The spelling of 42252515 in words is "forty-two million, two hundred fifty-two thousand, five hundred fifteen".