252909951 has 8 divisors (see below), whose sum is σ = 385386624. Its totient is φ = 144519960.

The previous prime is 252909949. The next prime is 252909953. The reversal of 252909951 is 159909252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (252909949) and next prime (252909953).

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

It is not a de Polignac number, because 252909951 - 2¹ = 252909949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252909953) 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, 6021645 + ... + 6021686.

It is an arithmetic number, because the mean of its divisors is an integer number (48173328).

Almost surely, 2^252909951 is an apocalyptic number.

252909951 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252909951 is a deficient number, since it is larger than the sum of its proper divisors (132476673).

252909951 is a wasteful number, since it uses less digits than its factorization.

252909951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12043341.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 252909951 is about 15903.1428026035. The cubic root of 252909951 is about 632.3953081213.

The spelling of 252909951 in words is "two hundred fifty-two million, nine hundred nine thousand, nine hundred fifty-one".