25136953 has 4 divisors (see below), whose sum is σ = 26229888. Its totient is φ = 24044020.

The previous prime is 25136921. The next prime is 25136957. The reversal of 25136953 is 35963152.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25136953 - 2⁵ = 25136921 is a prime.

It is a super-2 number, since 2×25136953² = 1263732812248418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25136957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546433 + ... + 546478.

It is an arithmetic number, because the mean of its divisors is an integer number (6557472).

Almost surely, 2^25136953 is an apocalyptic number.

25136953 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25136953 is a deficient number, since it is larger than the sum of its proper divisors (1092935).

25136953 is a wasteful number, since it uses less digits than its factorization.

25136953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092934.

The product of its digits is 24300, while the sum is 34.

The square root of 25136953 is about 5013.6765950747. The cubic root of 25136953 is about 292.9347391219.

The spelling of 25136953 in words is "twenty-five million, one hundred thirty-six thousand, nine hundred fifty-three".