213542210425 has 12 divisors (see below), whose sum is σ = 264805132240. Its totient is φ = 170825515920.

The previous prime is 213542210423. The next prime is 213542210443. The reversal of 213542210425 is 524012245312.

It is a happy number.

It is not a de Polignac number, because 213542210425 - 2¹ = 213542210423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213542210423) 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, 351094 + ... + 741856.

Almost surely, 2^213542210425 is an apocalyptic number.

213542210425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213542210425 is a deficient number, since it is larger than the sum of its proper divisors (51262921815).

213542210425 is a wasteful number, since it uses less digits than its factorization.

213542210425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412632 (or 412627 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 213542210425 its reverse (524012245312), we get a palindrome (737554455737).

The spelling of 213542210425 in words is "two hundred thirteen billion, five hundred forty-two million, two hundred ten thousand, four hundred twenty-five".