427455625 has 15 divisors (see below), whose sum is σ = 534795217. Its totient is φ = 341551000.

The previous prime is 427455619. The next prime is 427455629. The reversal of 427455625 is 526554724.

The square root of 427455625 is 20675.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 33512521 + 393943104 = 5789^2 + 19848^2 .

It is not a de Polignac number, because 427455625 - 2⁵ = 427455593 is a prime.

It is a super-2 number, since 2×427455625² = 365436622688281250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427455629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 516462 + ... + 517288.

Almost surely, 2^427455625 is an apocalyptic number.

427455625 is the 20675-th square number.

427455625 is the 10338-th centered octagonal number.

It is an amenable number.

427455625 is a deficient number, since it is larger than the sum of its proper divisors (107339592).

427455625 is an frugal number, since it uses more digits than its factorization.

427455625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 832 counting only the distinct ones).

The product of its digits is 336000, while the sum is 40.

The cubic root of 427455625 is about 753.2925612718.

Subtracting 427455625 from its reverse (526554724), we obtain a palindrome (99099099).

The spelling of 427455625 in words is "four hundred twenty-seven million, four hundred fifty-five thousand, six hundred twenty-five".