213432425 has 12 divisors (see below), whose sum is σ = 267847440. Its totient is φ = 168687120.

The previous prime is 213432421. The next prime is 213432449. The reversal of 213432425 is 524234312.

213432425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213432425 - 2² = 213432421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213432394 and 213432403.

It is not an unprimeable number, because it can be changed into a prime (213432421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49355 + ... + 53504.

It is an arithmetic number, because the mean of its divisors is an integer number (22320620).

Almost surely, 2^213432425 is an apocalyptic number.

213432425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213432425 is a deficient number, since it is larger than the sum of its proper divisors (54415015).

213432425 is a wasteful number, since it uses less digits than its factorization.

213432425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102952 (or 102947 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 213432425 is about 14609.3266443050. The cubic root of 213432425 is about 597.6131331092.

Adding to 213432425 its reverse (524234312), we get a palindrome (737666737).

The spelling of 213432425 in words is "two hundred thirteen million, four hundred thirty-two thousand, four hundred twenty-five".