42501505 has 16 divisors (see below), whose sum is σ = 52002000. Its totient is φ = 33341440.

The previous prime is 42501497. The next prime is 42501521. The reversal of 42501505 is 50510524.

It can be written as a sum of positive squares in 8 ways, for example, as 2039184 + 40462321 = 1428^2 + 6361^2 .

It is not a de Polignac number, because 42501505 - 2³ = 42501497 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, 65985 + ... + 66625.

It is an arithmetic number, because the mean of its divisors is an integer number (3250125).

Almost surely, 2^42501505 is an apocalyptic number.

It is an amenable number.

42501505 is a deficient number, since it is larger than the sum of its proper divisors (9500495).

42501505 is a wasteful number, since it uses less digits than its factorization.

42501505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 42501505 is about 6519.3178324116. The cubic root of 42501505 is about 348.9807215893.

The spelling of 42501505 in words is "forty-two million, five hundred one thousand, five hundred five".