2145150025 has 12 divisors (see below), whose sum is σ = 2705072400. Its totient is φ = 1687032080.

The previous prime is 2145150019. The next prime is 2145150047. The reversal of 2145150025 is 5200515412.

It is not a de Polignac number, because 2145150025 - 2¹³ = 2145141833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 725695 + ... + 728644.

It is an arithmetic number, because the mean of its divisors is an integer number (225422700).

Almost surely, 2^2145150025 is an apocalyptic number.

2145150025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2145150025 is a deficient number, since it is larger than the sum of its proper divisors (559922375).

2145150025 is a wasteful number, since it uses less digits than its factorization.

2145150025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454408 (or 1454403 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2145150025 is about 46315.7643249035. The cubic root of 2145150025 is about 1289.6916565684.

Adding to 2145150025 its reverse (5200515412), we get a palindrome (7345665437).

The spelling of 2145150025 in words is "two billion, one hundred forty-five million, one hundred fifty thousand, twenty-five".