625024249 has 4 divisors (see below), whose sum is σ = 625170420. Its totient is φ = 624878080.

The previous prime is 625024243. The next prime is 625024319. The reversal of 625024249 is 942420526.

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 79334649 + 545689600 = 8907^2 + 23360^2 .

It is a cyclic number.

It is not a de Polignac number, because 625024249 - 2¹⁵ = 624991481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625024243) 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, 66472 + ... + 75289.

It is an arithmetic number, because the mean of its divisors is an integer number (156292605).

Almost surely, 2^625024249 is an apocalyptic number.

It is an amenable number.

625024249 is a deficient number, since it is larger than the sum of its proper divisors (146171).

625024249 is a wasteful number, since it uses less digits than its factorization.

625024249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146170.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 625024249 is about 25000.4849752960. The cubic root of 625024249 is about 854.9990305838. Note that the first 3 decimals are identical.

The spelling of 625024249 in words is "six hundred twenty-five million, twenty-four thousand, two hundred forty-nine".