249111475 has 12 divisors (see below), whose sum is σ = 309104224. Its totient is φ = 199156320.

The previous prime is 249111463. The next prime is 249111493. The reversal of 249111475 is 574111942.

It is a de Polignac number, because none of the positive numbers 2^k-249111475 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249111475.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54997 + ... + 59353.

Almost surely, 2^249111475 is an apocalyptic number.

249111475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

249111475 is a deficient number, since it is larger than the sum of its proper divisors (59992749).

249111475 is a wasteful number, since it uses less digits than its factorization.

249111475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6654 (or 6649 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 249111475 is about 15783.2656633537. The cubic root of 249111475 is about 629.2133248051.

The spelling of 249111475 in words is "two hundred forty-nine million, one hundred eleven thousand, four hundred seventy-five".