252420547 has 2 divisors, whose sum is σ = 252420548. Its totient is φ = 252420546.

The previous prime is 252420541. The next prime is 252420551. The reversal of 252420547 is 745024252.

252420547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252420547 - 2⁷ = 252420419 is a prime.

It is a super-2 number, since 2×252420547² = 127432265095558418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (252420541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126210273 + 126210274.

It is an arithmetic number, because the mean of its divisors is an integer number (126210274).

Almost surely, 2^252420547 is an apocalyptic number.

252420547 is a deficient number, since it is larger than the sum of its proper divisors (1).

252420547 is an equidigital number, since it uses as much as digits as its factorization.

252420547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 252420547 is about 15887.7483300813. The cubic root of 252420547 is about 631.9871303727.

Adding to 252420547 its reverse (745024252), we get a palindrome (997444799).

It can be divided in two parts, 2524205 and 47, that added together give a palindrome (2524252).

The spelling of 252420547 in words is "two hundred fifty-two million, four hundred twenty thousand, five hundred forty-seven".