1625016937 has 2 divisors, whose sum is σ = 1625016938. Its totient is φ = 1625016936.

The previous prime is 1625016901. The next prime is 1625016947. The reversal of 1625016937 is 7396105261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1285867881 + 339149056 = 35859^2 + 18416^2 .

It is an emirp because it is prime and its reverse (7396105261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1625016937 - 2¹¹ = 1625014889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1625016937.

It is not a weakly prime, because it can be changed into another prime (1625016947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812508468 + 812508469.

It is an arithmetic number, because the mean of its divisors is an integer number (812508469).

Almost surely, 2^1625016937 is an apocalyptic number.

It is an amenable number.

1625016937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625016937 is an equidigital number, since it uses as much as digits as its factorization.

1625016937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 1625016937 is about 40311.4988185753. The cubic root of 1625016937 is about 1175.6714284160.

The spelling of 1625016937 in words is "one billion, six hundred twenty-five million, sixteen thousand, nine hundred thirty-seven".