42612505 has 24 divisors (see below), whose sum is σ = 55866240. Its totient is φ = 31187520.

The previous prime is 42612499. The next prime is 42612511. The reversal of 42612505 is 50521624.

It is an interprime number because it is at equal distance from previous prime (42612499) and next prime (42612511).

It is not a de Polignac number, because 42612505 - 2⁷ = 42612377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42612505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178176 + ... + 178414.

It is an arithmetic number, because the mean of its divisors is an integer number (2327760).

Almost surely, 2^42612505 is an apocalyptic number.

It is an amenable number.

42612505 is a deficient number, since it is larger than the sum of its proper divisors (13253735).

42612505 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 42612505 = (22065451)₁₁.

42612505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 42612505 is about 6527.8254419064. The cubic root of 42612505 is about 349.2842652424.

The spelling of 42612505 in words is "forty-two million, six hundred twelve thousand, five hundred five".