252040429 has 2 divisors, whose sum is σ = 252040430. Its totient is φ = 252040428.

The previous prime is 252040423. The next prime is 252040483. The reversal of 252040429 is 924040252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151339204 + 100701225 = 12302^2 + 10035^2 .

It is a cyclic number.

It is not a de Polignac number, because 252040429 - 2¹⁹ = 251516141 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 252040397 and 252040406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252040423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126020214 + 126020215.

It is an arithmetic number, because the mean of its divisors is an integer number (126020215).

Almost surely, 2^252040429 is an apocalyptic number.

It is an amenable number.

252040429 is a deficient number, since it is larger than the sum of its proper divisors (1).

252040429 is an equidigital number, since it uses as much as digits as its factorization.

252040429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 252040429 is about 15875.7812091248. The cubic root of 252040429 is about 631.6697362798.

The spelling of 252040429 in words is "two hundred fifty-two million, forty thousand, four hundred twenty-nine".