425872205 has 18 divisors (see below), whose sum is σ = 562399278. Its totient is φ = 309356080.

The previous prime is 425872201. The next prime is 425872229. The reversal of 425872205 is 502278524.

It can be written as a sum of positive squares in only one way, i.e., 340697764 + 85174441 = 18458^2 + 9229^2 .

It is not a de Polignac number, because 425872205 - 2² = 425872201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425872201) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 507176 + ... + 508014.

Almost surely, 2^425872205 is an apocalyptic number.

It is an amenable number.

425872205 is a deficient number, since it is larger than the sum of its proper divisors (136527073).

425872205 is an frugal number, since it uses more digits than its factorization.

425872205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 425872205 is about 20636.6713643456. The cubic root of 425872205 is about 752.3612721308.

The spelling of 425872205 in words is "four hundred twenty-five million, eight hundred seventy-two thousand, two hundred five".