250000025249 has 4 divisors (see below), whose sum is σ = 269230796436. Its totient is φ = 230769254064.

The previous prime is 250000025237. The next prime is 250000025267. The reversal of 250000025249 is 942520000052.

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 94138512400 + 155861512849 = 306820^2 + 394793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250000025249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250000025269) 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, 9615385574 + ... + 9615385599.

It is an arithmetic number, because the mean of its divisors is an integer number (67307699109).

Almost surely, 2^250000025249 is an apocalyptic number.

It is an amenable number.

250000025249 is a deficient number, since it is larger than the sum of its proper divisors (19230771187).

250000025249 is a wasteful number, since it uses less digits than its factorization.

250000025249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19230771186.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 250000025249 in words is "two hundred fifty billion, twenty-five thousand, two hundred forty-nine".