1250000049 has 4 divisors (see below), whose sum is σ = 1666666736. Its totient is φ = 833333364.

The previous prime is 1250000047. The next prime is 1250000051. The reversal of 1250000049 is 9400000521.

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 an interprime number because it is at equal distance from previous prime (1250000047) and next prime (1250000051).

It is not a de Polignac number, because 1250000049 - 2¹ = 1250000047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1250000041) 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, 208333339 + ... + 208333344.

It is an arithmetic number, because the mean of its divisors is an integer number (416666684).

Almost surely, 2^1250000049 is an apocalyptic number.

It is an amenable number.

1250000049 is a deficient number, since it is larger than the sum of its proper divisors (416666687).

1250000049 is an equidigital number, since it uses as much as digits as its factorization.

1250000049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416666686.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1250000049 is about 35355.3397522920. The cubic root of 1250000049 is about 1077.2173590916.

The spelling of 1250000049 in words is "one billion, two hundred fifty million, forty-nine", and thus it is an aban number.