42520611 has 16 divisors (see below), whose sum is σ = 65138688. Its totient is φ = 24168000.

The previous prime is 42520609. The next prime is 42520619. The reversal of 42520611 is 11602524.

It is not a de Polignac number, because 42520611 - 2¹ = 42520609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (42520619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290 + ... + 9311.

It is an arithmetic number, because the mean of its divisors is an integer number (4071168).

Almost surely, 2^42520611 is an apocalyptic number.

42520611 is a deficient number, since it is larger than the sum of its proper divisors (22618077).

42520611 is a wasteful number, since it uses less digits than its factorization.

42520611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10802.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 42520611 is about 6520.7830051306. The cubic root of 42520611 is about 349.0330070068.

The spelling of 42520611 in words is "forty-two million, five hundred twenty thousand, six hundred eleven".