1625118251 has 2 divisors, whose sum is σ = 1625118252. Its totient is φ = 1625118250.

The previous prime is 1625118217. The next prime is 1625118293. The reversal of 1625118251 is 1528115261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1625118251 - 2¹⁴ = 1625101867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1615118251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812559125 + 812559126.

It is an arithmetic number, because the mean of its divisors is an integer number (812559126).

Almost surely, 2^1625118251 is an apocalyptic number.

1625118251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625118251 is an equidigital number, since it uses as much as digits as its factorization.

1625118251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 32.

The square root of 1625118251 is about 40312.7554379504. The cubic root of 1625118251 is about 1175.6958608792.

The spelling of 1625118251 in words is "one billion, six hundred twenty-five million, one hundred eighteen thousand, two hundred fifty-one".