42510500 has 24 divisors (see below), whose sum is σ = 92844024. Its totient is φ = 17004000.

The previous prime is 42510499. The next prime is 42510511. The reversal of 42510500 is 501524.

It can be written as a sum of positive squares in 4 ways, for example, as 3297856 + 39212644 = 1816^2 + 6262^2 .

It is a super-2 number, since 2×42510500² = 3614285220500000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42011 + ... + 43010.

It is an arithmetic number, because the mean of its divisors is an integer number (3868501).

Almost surely, 2^42510500 is an apocalyptic number.

It is an amenable number.

42510500 is an abundant number, since it is smaller than the sum of its proper divisors (50333524).

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

42510500 is a wasteful number, since it uses less digits than its factorization.

42510500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85040 (or 85028 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 42510500 is about 6520.0076687071. The cubic root of 42510500 is about 349.0053392286.

The spelling of 42510500 in words is "forty-two million, five hundred ten thousand, five hundred".