425405525 has 12 divisors (see below), whose sum is σ = 527890692. Its totient is φ = 340074240.

The previous prime is 425405509. The next prime is 425405531. The reversal of 425405525 is 525504524.

It can be written as a sum of positive squares in 6 ways, for example, as 39715204 + 385690321 = 6302^2 + 19639^2 .

It is not a de Polignac number, because 425405525 - 2⁴ = 425405509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425405491 and 425405500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33347 + ... + 44303.

It is an arithmetic number, because the mean of its divisors is an integer number (43990891).

Almost surely, 2^425405525 is an apocalyptic number.

It is an amenable number.

425405525 is a deficient number, since it is larger than the sum of its proper divisors (102485167).

425405525 is a wasteful number, since it uses less digits than its factorization.

425405525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12520 (or 12515 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 425405525 is about 20625.3612089583. The cubic root of 425405525 is about 752.0863537520.

The spelling of 425405525 in words is "four hundred twenty-five million, four hundred five thousand, five hundred twenty-five".