210525040 has 40 divisors (see below), whose sum is σ = 533970288. Its totient is φ = 76554240.

The previous prime is 210525013. The next prime is 210525041. The reversal of 210525040 is 40525012.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 210524999 and 210525017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210525041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118737 + ... + 120496.

Almost surely, 2^210525040 is an apocalyptic number.

210525040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210525040 is an abundant number, since it is smaller than the sum of its proper divisors (323445248).

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

210525040 is a wasteful number, since it uses less digits than its factorization.

210525040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239257 (or 239251 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 210525040 is about 14509.4810382729. The cubic root of 210525040 is about 594.8871475821.

The spelling of 210525040 in words is "two hundred ten million, five hundred twenty-five thousand, forty".