248953531 has 4 divisors (see below), whose sum is σ = 254743192. Its totient is φ = 243163872.

The previous prime is 248953519. The next prime is 248953553. The reversal of 248953531 is 135359842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 248953531 - 2¹³ = 248945339 is a prime.

It is a super-2 number, since 2×248953531² = 123955721194735922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248953571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2894766 + ... + 2894851.

It is an arithmetic number, because the mean of its divisors is an integer number (63685798).

Almost surely, 2^248953531 is an apocalyptic number.

248953531 is a deficient number, since it is larger than the sum of its proper divisors (5789661).

248953531 is an equidigital number, since it uses as much as digits as its factorization.

248953531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789660.

The product of its digits is 129600, while the sum is 40.

The square root of 248953531 is about 15778.2613427462. The cubic root of 248953531 is about 629.0803167744.

The spelling of 248953531 in words is "two hundred forty-eight million, nine hundred fifty-three thousand, five hundred thirty-one".