252420415 has 32 divisors (see below), whose sum is σ = 344998080. Its totient is φ = 175758336.

The previous prime is 252420391. The next prime is 252420419. The reversal of 252420415 is 514024252.

It is not a de Polignac number, because 252420415 - 2¹⁷ = 252289343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252420415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252420419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386229 + ... + 386881.

It is an arithmetic number, because the mean of its divisors is an integer number (10781190).

Almost surely, 2^252420415 is an apocalyptic number.

252420415 is a deficient number, since it is larger than the sum of its proper divisors (92577665).

252420415 is a wasteful number, since it uses less digits than its factorization.

252420415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 252420415 is about 15887.7441759364. The cubic root of 252420415 is about 631.9870202096.

Adding to 252420415 its reverse (514024252), we get a palindrome (766444667).

The spelling of 252420415 in words is "two hundred fifty-two million, four hundred twenty thousand, four hundred fifteen".