625687201 has 2 divisors, whose sum is σ = 625687202. Its totient is φ = 625687200.

The previous prime is 625687163. The next prime is 625687213. The reversal of 625687201 is 102786526.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516380176 + 109307025 = 22724^2 + 10455^2 .

It is a cyclic number.

It is not a de Polignac number, because 625687201 - 2¹³ = 625679009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (625687001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312843600 + 312843601.

It is an arithmetic number, because the mean of its divisors is an integer number (312843601).

Almost surely, 2^625687201 is an apocalyptic number.

It is an amenable number.

625687201 is a deficient number, since it is larger than the sum of its proper divisors (1).

625687201 is an equidigital number, since it uses as much as digits as its factorization.

625687201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 625687201 is about 25013.7402441138. The cubic root of 625687201 is about 855.3012178082.

The spelling of 625687201 in words is "six hundred twenty-five million, six hundred eighty-seven thousand, two hundred one".