248623551 has 12 divisors (see below), whose sum is σ = 391770600. Its totient is φ = 150680880.

The previous prime is 248623517. The next prime is 248623559. The reversal of 248623551 is 155326842.

248623551 is a `hidden beast` number, since 2 + 4 + 86 + 23 + 551 = 666.

It is not a de Polignac number, because 248623551 - 2²⁶ = 181514687 is a prime.

It is a super-2 number, since 2×248623551² = 123627340223699202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248623559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1255576 + ... + 1255773.

It is an arithmetic number, because the mean of its divisors is an integer number (32647550).

Almost surely, 2^248623551 is an apocalyptic number.

248623551 is a deficient number, since it is larger than the sum of its proper divisors (143147049).

248623551 is a wasteful number, since it uses less digits than its factorization.

248623551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511366 (or 2511363 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 248623551 is about 15767.8010832202. The cubic root of 248623551 is about 628.8022518882.

The spelling of 248623551 in words is "two hundred forty-eight million, six hundred twenty-three thousand, five hundred fifty-one".