425632473 has 30 divisors (see below), whose sum is σ = 717263274. Its totient is φ = 243206208.

The previous prime is 425632469. The next prime is 425632477. The reversal of 425632473 is 374236524.

425632473 is a `hidden beast` number, since 4 + 2 + 563 + 24 + 73 = 666.

It is an interprime number because it is at equal distance from previous prime (425632469) and next prime (425632477).

It can be written as a sum of positive squares in only one way, i.e., 290770704 + 134861769 = 17052^2 + 11613^2 .

It is not a de Polignac number, because 425632473 - 2² = 425632469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425632477) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 11761 + ... + 31457.

Almost surely, 2^425632473 is an apocalyptic number.

It is an amenable number.

425632473 is a deficient number, since it is larger than the sum of its proper divisors (291630801).

425632473 is an equidigital number, since it uses as much as digits as its factorization.

425632473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19731 (or 19707 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 425632473 is about 20630.8621487324. The cubic root of 425632473 is about 752.2200725529.

Adding to 425632473 its reverse (374236524), we get a palindrome (799868997).

The spelling of 425632473 in words is "four hundred twenty-five million, six hundred thirty-two thousand, four hundred seventy-three".