2153215425 has 24 divisors (see below), whose sum is σ = 3565325376. Its totient is φ = 1146658240.

The previous prime is 2153215399. The next prime is 2153215433. The reversal of 2153215425 is 5245123512.

It is not a de Polignac number, because 2153215425 - 2⁹ = 2153214913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2153215392 and 2153215401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29572 + ... + 71978.

It is an arithmetic number, because the mean of its divisors is an integer number (148555224).

Almost surely, 2^2153215425 is an apocalyptic number.

2153215425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2153215425 is a deficient number, since it is larger than the sum of its proper divisors (1412109951).

2153215425 is a wasteful number, since it uses less digits than its factorization.

2153215425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43097 (or 43092 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 2153215425 is about 46402.7523429376. The cubic root of 2153215425 is about 1291.3059756440.

Adding to 2153215425 its reverse (5245123512), we get a palindrome (7398338937).

The spelling of 2153215425 in words is "two billion, one hundred fifty-three million, two hundred fifteen thousand, four hundred twenty-five".