1650727025 has 12 divisors (see below), whose sum is σ = 2057298012. Its totient is φ = 1313874240.

The previous prime is 1650727019. The next prime is 1650727051. The reversal of 1650727025 is 5207270561.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 400680289 + 1250046736 = 20017^2 + 35356^2 .

It is not a de Polignac number, because 1650727025 - 2¹⁰ = 1650726001 is a prime.

It is a super-2 number, since 2×1650727025² = 5449799422130701250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162662 + ... + 172511.

It is an arithmetic number, because the mean of its divisors is an integer number (171441501).

Almost surely, 2^1650727025 is an apocalyptic number.

It is an amenable number.

1650727025 is a deficient number, since it is larger than the sum of its proper divisors (406570987).

1650727025 is a wasteful number, since it uses less digits than its factorization.

1650727025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335380 (or 335375 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 1650727025 is about 40629.1400967335. The cubic root of 1650727025 is about 1181.8392806481.

Adding to 1650727025 its reverse (5207270561), we get a palindrome (6857997586).

The spelling of 1650727025 in words is "one billion, six hundred fifty million, seven hundred twenty-seven thousand, twenty-five".