225420530 has 32 divisors (see below), whose sum is σ = 423940608. Its totient is φ = 86198400.

The previous prime is 225420521. The next prime is 225420551. The reversal of 225420530 is 35024522.

It is a junction number, because it is equal to n+sod(n) for n = 225420496 and 225420505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21350 + ... + 30110.

It is an arithmetic number, because the mean of its divisors is an integer number (13248144).

Almost surely, 2^225420530 is an apocalyptic number.

225420530 is a deficient number, since it is larger than the sum of its proper divisors (198520078).

225420530 is a wasteful number, since it uses less digits than its factorization.

225420530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8882.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 225420530 is about 15014.0111229478. The cubic root of 225420530 is about 608.5988894183.

The spelling of 225420530 in words is "two hundred twenty-five million, four hundred twenty thousand, five hundred thirty".