4215525 has 12 divisors (see below), whose sum is σ = 6969792. Its totient is φ = 2248240.

The previous prime is 4215517. The next prime is 4215539. The reversal of 4215525 is 5255124.

It is a happy number.

It is not a de Polignac number, because 4215525 - 2³ = 4215517 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4215495 and 4215504.

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, 28029 + ... + 28178.

It is an arithmetic number, because the mean of its divisors is an integer number (580816).

Almost surely, 2^4215525 is an apocalyptic number.

It is an amenable number.

4215525 is a deficient number, since it is larger than the sum of its proper divisors (2754267).

4215525 is a wasteful number, since it uses less digits than its factorization.

4215525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56220 (or 56215 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 4215525 is about 2053.1743715525. The cubic root of 4215525 is about 161.5414176155.

The spelling of 4215525 in words is "four million, two hundred fifteen thousand, five hundred twenty-five".