2152211425 has 48 divisors (see below), whose sum is σ = 3390671872. Its totient is φ = 1318291200.

The previous prime is 2152211417. The next prime is 2152211429. The reversal of 2152211425 is 5241122512.

It is not a de Polignac number, because 2152211425 - 2³ = 2152211417 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2152211425.

It is not an unprimeable number, because it can be changed into a prime (2152211429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55267 + ... + 85783.

Almost surely, 2^2152211425 is an apocalyptic number.

2152211425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2152211425 is a deficient number, since it is larger than the sum of its proper divisors (1238460447).

2152211425 is a wasteful number, since it uses less digits than its factorization.

2152211425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30578 (or 30573 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 2152211425 is about 46391.9327577543. The cubic root of 2152211425 is about 1291.1052413154.

Adding to 2152211425 its reverse (5241122512), we get a palindrome (7393333937).

The spelling of 2152211425 in words is "two billion, one hundred fifty-two million, two hundred eleven thousand, four hundred twenty-five".