42510516 has 12 divisors (see below), whose sum is σ = 99191232. Its totient is φ = 14170168.

The previous prime is 42510511. The next prime is 42510527. The reversal of 42510516 is 61501524.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42510511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1771260 + ... + 1771283.

It is an arithmetic number, because the mean of its divisors is an integer number (8265936).

Almost surely, 2^42510516 is an apocalyptic number.

It is an amenable number.

42510516 is an abundant number, since it is smaller than the sum of its proper divisors (56680716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42510516 is a wasteful number, since it uses less digits than its factorization.

42510516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542550 (or 3542548 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 42510516 is about 6520.0088956995. The cubic root of 42510516 is about 349.0053830145.

The spelling of 42510516 in words is "forty-two million, five hundred ten thousand, five hundred sixteen".