42201515 has 16 divisors (see below), whose sum is σ = 51967008. Its totient is φ = 32887296.

The previous prime is 42201487. The next prime is 42201539. The reversal of 42201515 is 51510224.

It is a cyclic number.

It is not a de Polignac number, because 42201515 - 2¹⁰ = 42200491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42707 + ... + 43683.

It is an arithmetic number, because the mean of its divisors is an integer number (3247938).

Almost surely, 2^42201515 is an apocalyptic number.

42201515 is a deficient number, since it is larger than the sum of its proper divisors (9765493).

42201515 is a wasteful number, since it uses less digits than its factorization.

42201515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 42201515 is about 6496.2693139986. The cubic root of 42201515 is about 348.1577075078.

Adding to 42201515 its reverse (51510224), we get a palindrome (93711739).

The spelling of 42201515 in words is "forty-two million, two hundred one thousand, five hundred fifteen".