213504825 has 12 divisors (see below), whose sum is σ = 352994768. Its totient is φ = 113869200.

The previous prime is 213504817. The next prime is 213504869. The reversal of 213504825 is 528405312.

It is not a de Polignac number, because 213504825 - 2³ = 213504817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213504792 and 213504801.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1423291 + ... + 1423440.

Almost surely, 2^213504825 is an apocalyptic number.

213504825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213504825 is a deficient number, since it is larger than the sum of its proper divisors (139489943).

213504825 is a wasteful number, since it uses less digits than its factorization.

213504825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846744 (or 2846739 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 213504825 is about 14611.8043033706. The cubic root of 213504825 is about 597.6806990682.

The spelling of 213504825 in words is "two hundred thirteen million, five hundred four thousand, eight hundred twenty-five".