25715153 has 4 divisors (see below), whose sum is σ = 25806948. Its totient is φ = 25623360.

The previous prime is 25715147. The next prime is 25715167. The reversal of 25715153 is 35151752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8133904 + 17581249 = 2852^2 + 4193^2 .

It is a cyclic number.

It is not a de Polignac number, because 25715153 - 2¹² = 25711057 is a prime.

It is a super-2 number, since 2×25715153² = 1322538187626818, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25715453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45476 + ... + 46037.

It is an arithmetic number, because the mean of its divisors is an integer number (6451737).

Almost surely, 2^25715153 is an apocalyptic number.

It is an amenable number.

25715153 is a deficient number, since it is larger than the sum of its proper divisors (91795).

25715153 is an equidigital number, since it uses as much as digits as its factorization.

25715153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91794.

The product of its digits is 5250, while the sum is 29.

The square root of 25715153 is about 5071.0110431747. The cubic root of 25715153 is about 295.1637623732.

The spelling of 25715153 in words is "twenty-five million, seven hundred fifteen thousand, one hundred fifty-three".