248756401 has 4 divisors (see below), whose sum is σ = 253449972. Its totient is φ = 244062832.

The previous prime is 248756377. The next prime is 248756413. The reversal of 248756401 is 104657842.

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

It can be written as a sum of positive squares in 2 ways, for example, as 138086001 + 110670400 = 11751^2 + 10520^2 .

It is a cyclic number.

It is not a de Polignac number, because 248756401 - 2⁷ = 248756273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248156401) 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, 2346706 + ... + 2346811.

It is an arithmetic number, because the mean of its divisors is an integer number (63362493).

Almost surely, 2^248756401 is an apocalyptic number.

It is an amenable number.

248756401 is a deficient number, since it is larger than the sum of its proper divisors (4693571).

248756401 is an equidigital number, since it uses as much as digits as its factorization.

248756401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693570.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 248756401 is about 15772.0132196242. The cubic root of 248756401 is about 628.9142304253.

The spelling of 248756401 in words is "two hundred forty-eight million, seven hundred fifty-six thousand, four hundred one".