248889531 has 16 divisors (see below), whose sum is σ = 381075840. Its totient is φ = 142902720.

The previous prime is 248889521. The next prime is 248889541. The reversal of 248889531 is 135988842.

It is an interprime number because it is at equal distance from previous prime (248889521) and next prime (248889541).

It is not a de Polignac number, because 248889531 - 2⁶ = 248889467 is a prime.

It is a super-2 number, since 2×248889531² = 123891997282799922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (248889521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197850 + ... + 199103.

It is an arithmetic number, because the mean of its divisors is an integer number (23817240).

Almost surely, 2^248889531 is an apocalyptic number.

248889531 is a deficient number, since it is larger than the sum of its proper divisors (132186309).

248889531 is a wasteful number, since it uses less digits than its factorization.

248889531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396986.

The product of its digits is 552960, while the sum is 48.

The square root of 248889531 is about 15776.2331055293. The cubic root of 248889531 is about 629.0264049853.

The spelling of 248889531 in words is "two hundred forty-eight million, eight hundred eighty-nine thousand, five hundred thirty-one".