252040425 has 48 divisors (see below), whose sum is σ = 512883840. Its totient is φ = 106352640.

The previous prime is 252040423. The next prime is 252040429. The reversal of 252040425 is 524040252.

It is a happy number.

It is not a de Polignac number, because 252040425 - 2¹ = 252040423 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 252040395 and 252040404.

It is not an unprimeable number, because it can be changed into a prime (252040423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11640 + ... + 25289.

It is an arithmetic number, because the mean of its divisors is an integer number (10685080).

Almost surely, 2^252040425 is an apocalyptic number.

252040425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252040425 is an abundant number, since it is smaller than the sum of its proper divisors (260843415).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252040425 is a wasteful number, since it uses less digits than its factorization.

252040425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36962 (or 36957 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 252040425 is about 15875.7810831467. The cubic root of 252040425 is about 631.6697329382.

Adding to 252040425 its reverse (524040252), we get a palindrome (776080677).

The spelling of 252040425 in words is "two hundred fifty-two million, forty thousand, four hundred twenty-five".