25214155 has 8 divisors (see below), whose sum is σ = 30622032. Its totient is φ = 19927968.

The previous prime is 25214153. The next prime is 25214171. The reversal of 25214155 is 55141252.

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

It is not a de Polignac number, because 25214155 - 2¹ = 25214153 is a prime.

It is a super-2 number, since 2×25214155² = 1271507224728050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25214153) 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, 29964 + ... + 30793.

It is an arithmetic number, because the mean of its divisors is an integer number (3827754).

Almost surely, 2^25214155 is an apocalyptic number.

25214155 is a deficient number, since it is larger than the sum of its proper divisors (5407877).

25214155 is an equidigital number, since it uses as much as digits as its factorization.

25214155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60845.

The product of its digits is 2000, while the sum is 25.

The square root of 25214155 is about 5021.3698330237. The cubic root of 25214155 is about 293.2343250855.

The spelling of 25214155 in words is "twenty-five million, two hundred fourteen thousand, one hundred fifty-five".