215153330025 has 24 divisors (see below), whose sum is σ = 374442289120. Its totient is φ = 108709050240.

The previous prime is 215153329973. The next prime is 215153330033. The reversal of 215153330025 is 520033351512.

It is not a de Polignac number, because 215153330025 - 2¹³ = 215153321833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215153329974 and 215153330001.

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, 75490972 + ... + 75493821.

Almost surely, 2^215153330025 is an apocalyptic number.

215153330025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215153330025 is a deficient number, since it is larger than the sum of its proper divisors (159288959095).

215153330025 is a wasteful number, since it uses less digits than its factorization.

215153330025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150984825 (or 150984820 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 215153330025 its reverse (520033351512), we get a palindrome (735186681537).

The spelling of 215153330025 in words is "two hundred fifteen billion, one hundred fifty-three million, three hundred thirty thousand, twenty-five".