25430155 has 8 divisors (see below), whose sum is σ = 30802032. Its totient is φ = 20153568.

The previous prime is 25430131. The next prime is 25430161. The reversal of 25430155 is 55103452.

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

It is a cyclic number.

It is not a de Polignac number, because 25430155 - 2⁵ = 25430123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23232 + ... + 24301.

It is an arithmetic number, because the mean of its divisors is an integer number (3850254).

Almost surely, 2^25430155 is an apocalyptic number.

25430155 is a deficient number, since it is larger than the sum of its proper divisors (5371877).

25430155 is a wasteful number, since it uses less digits than its factorization.

25430155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47645.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 25430155 is about 5042.8320416211. The cubic root of 25430155 is about 294.0692873549.

The spelling of 25430155 in words is "twenty-five million, four hundred thirty thousand, one hundred fifty-five".