248625749 has 4 divisors (see below), whose sum is σ = 248676960. Its totient is φ = 248574540.

The previous prime is 248625733. The next prime is 248625757. The reversal of 248625749 is 947526842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 248625749 - 2⁴ = 248625733 is a prime.

It is a super-2 number, since 2×248625749² = 123629526131622002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248625449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17459 + ... + 28320.

It is an arithmetic number, because the mean of its divisors is an integer number (62169240).

Almost surely, 2^248625749 is an apocalyptic number.

It is an amenable number.

248625749 is a deficient number, since it is larger than the sum of its proper divisors (51211).

248625749 is an equidigital number, since it uses as much as digits as its factorization.

248625749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51210.

The product of its digits is 967680, while the sum is 47.

The square root of 248625749 is about 15767.8707820682. The cubic root of 248625749 is about 628.8041048948.

The spelling of 248625749 in words is "two hundred forty-eight million, six hundred twenty-five thousand, seven hundred forty-nine".