252485421 has 32 divisors (see below), whose sum is σ = 371589120. Its totient is φ = 151958400.

The previous prime is 252485399. The next prime is 252485423. The reversal of 252485421 is 124584252.

It is not a de Polignac number, because 252485421 - 2¹³ = 252477229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252485423) 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, 86260 + ... + 89138.

It is an arithmetic number, because the mean of its divisors is an integer number (11612160).

Almost surely, 2^252485421 is an apocalyptic number.

It is an amenable number.

252485421 is a deficient number, since it is larger than the sum of its proper divisors (119103699).

252485421 is a wasteful number, since it uses less digits than its factorization.

252485421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977.

The product of its digits is 25600, while the sum is 33.

The square root of 252485421 is about 15889.7898349852. The cubic root of 252485421 is about 632.0412675678.

The spelling of 252485421 in words is "two hundred fifty-two million, four hundred eighty-five thousand, four hundred twenty-one".