425015215 has 16 divisors (see below), whose sum is σ = 550214208. Its totient is φ = 313970176.

The previous prime is 425015209. The next prime is 425015233. The reversal of 425015215 is 512510524.

425015215 = 5316² + 5317² + ... + 5330².

It is a cyclic number.

It is not a de Polignac number, because 425015215 - 2²³ = 416626607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425015215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42667 + ... + 51676.

It is an arithmetic number, because the mean of its divisors is an integer number (34388388).

Almost surely, 2^425015215 is an apocalyptic number.

425015215 is a deficient number, since it is larger than the sum of its proper divisors (125198993).

425015215 is a wasteful number, since it uses less digits than its factorization.

425015215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94418.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 425015215 is about 20615.8971427391. The cubic root of 425015215 is about 751.8562700398.

Adding to 425015215 its reverse (512510524), we get a palindrome (937525739).

The spelling of 425015215 in words is "four hundred twenty-five million, fifteen thousand, two hundred fifteen".