25152330921 has 8 divisors (see below), whose sum is σ = 33538117824. Its totient is φ = 16767382320.

The previous prime is 25152330911. The next prime is 25152330991. The reversal of 25152330921 is 12903325152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25152330921 - 2²¹ = 25150233769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25152330911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135861 + ... + 262226.

It is an arithmetic number, because the mean of its divisors is an integer number (4192264728).

Almost surely, 2^25152330921 is an apocalyptic number.

It is an amenable number.

25152330921 is a deficient number, since it is larger than the sum of its proper divisors (8385786903).

25152330921 is a wasteful number, since it uses less digits than its factorization.

25152330921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419151.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 25152330921 in words is "twenty-five billion, one hundred fifty-two million, three hundred thirty thousand, nine hundred twenty-one".