252474749 has 8 divisors (see below), whose sum is σ = 264148992. Its totient is φ = 240858640.

The previous prime is 252474737. The next prime is 252474751. The reversal of 252474749 is 947474252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252474749 is a prime.

It is a super-2 number, since 2×252474749² = 127486997765226002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252474799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5522 + ... + 23139.

It is an arithmetic number, because the mean of its divisors is an integer number (33018624).

Almost surely, 2^252474749 is an apocalyptic number.

It is an amenable number.

252474749 is a deficient number, since it is larger than the sum of its proper divisors (11674243).

252474749 is a wasteful number, since it uses less digits than its factorization.

252474749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29067.

The product of its digits is 564480, while the sum is 44.

The square root of 252474749 is about 15889.4540183104. The cubic root of 252474749 is about 632.0323624471.

The spelling of 252474749 in words is "two hundred fifty-two million, four hundred seventy-four thousand, seven hundred forty-nine".