252477999 has 16 divisors (see below), whose sum is σ = 396044640. Its totient is φ = 158417280.

The previous prime is 252477997. The next prime is 252478013. The reversal of 252477999 is 999774252.

It is not a de Polignac number, because 252477999 - 2¹ = 252477997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252477991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274572 + ... + 275489.

It is an arithmetic number, because the mean of its divisors is an integer number (24752790).

Almost surely, 2^252477999 is an apocalyptic number.

252477999 is a deficient number, since it is larger than the sum of its proper divisors (143566641).

252477999 is a wasteful number, since it uses less digits than its factorization.

252477999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550087 (or 550081 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 252477999 is about 15889.5562870711. The cubic root of 252477999 is about 632.0350743967.

The spelling of 252477999 in words is "two hundred fifty-two million, four hundred seventy-seven thousand, nine hundred ninety-nine".