655213430 has 16 divisors (see below), whose sum is σ = 1190408400. Its totient is φ = 259635552.

The previous prime is 655213421. The next prime is 655213441. The reversal of 655213430 is 34312556.

It is a junction number, because it is equal to n+sod(n) for n = 655213393 and 655213402.

It is a congruent number.

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, 305105 + ... + 307244.

It is an arithmetic number, because the mean of its divisors is an integer number (74400525).

Almost surely, 2^655213430 is an apocalyptic number.

655213430 is a deficient number, since it is larger than the sum of its proper divisors (535194970).

655213430 is a wasteful number, since it uses less digits than its factorization.

655213430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612463.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 655213430 is about 25597.1371446105. The cubic root of 655213430 is about 868.5488778941.

Adding to 655213430 its reverse (34312556), we get a palindrome (689525986).

The spelling of 655213430 in words is "six hundred fifty-five million, two hundred thirteen thousand, four hundred thirty".