653425630 has 64 divisors (see below), whose sum is σ = 1441939968. Its totient is φ = 209784960.

The previous prime is 653425621. The next prime is 653425639. The reversal of 653425630 is 36524356.

It is an interprime number because it is at equal distance from previous prime (653425621) and next prime (653425639).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653425639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22957 + ... + 42823.

It is an arithmetic number, because the mean of its divisors is an integer number (22530312).

Almost surely, 2^653425630 is an apocalyptic number.

653425630 is an abundant number, since it is smaller than the sum of its proper divisors (788514338).

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

653425630 is a wasteful number, since it uses less digits than its factorization.

653425630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19921.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 653425630 is about 25562.1914162303. The cubic root of 653425630 is about 867.7581909408.

Adding to 653425630 its reverse (36524356), we get a palindrome (689949986).

The spelling of 653425630 in words is "six hundred fifty-three million, four hundred twenty-five thousand, six hundred thirty".