248661485 has 4 divisors (see below), whose sum is σ = 298393788. Its totient is φ = 198929184.

The previous prime is 248661463. The next prime is 248661527. The reversal of 248661485 is 584166842.

It is a happy number.

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 98525476 + 150136009 = 9926^2 + 12253^2 .

It is a cyclic number.

It is not a de Polignac number, because 248661485 - 2⁶ = 248661421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24866144 + ... + 24866153.

It is an arithmetic number, because the mean of its divisors is an integer number (74598447).

Almost surely, 2^248661485 is an apocalyptic number.

It is an amenable number.

248661485 is a deficient number, since it is larger than the sum of its proper divisors (49732303).

248661485 is an equidigital number, since it uses as much as digits as its factorization.

248661485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49732302.

The product of its digits is 368640, while the sum is 44.

The square root of 248661485 is about 15769.0039317644. The cubic root of 248661485 is about 628.8342303170.

The spelling of 248661485 in words is "two hundred forty-eight million, six hundred sixty-one thousand, four hundred eighty-five".