25113501 has 12 divisors (see below), whose sum is σ = 41457312. Its totient is φ = 14350536.

The previous prime is 25113499. The next prime is 25113523. The reversal of 25113501 is 10531152.

It is not a de Polignac number, because 25113501 - 2¹ = 25113499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25113541) 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 11 ways as a sum of consecutive naturals, for example, 199251 + ... + 199376.

It is an arithmetic number, because the mean of its divisors is an integer number (3454776).

Almost surely, 2^25113501 is an apocalyptic number.

25113501 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25113501 is a deficient number, since it is larger than the sum of its proper divisors (16343811).

25113501 is a wasteful number, since it uses less digits than its factorization.

25113501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398640 (or 398637 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 25113501 is about 5011.3372466838. The cubic root of 25113501 is about 292.8436110911.

Adding to 25113501 its reverse (10531152), we get a palindrome (35644653).

It can be divided in two parts, 25 and 113501, that added together give a triangular number (113526 = T₄₇₆).

The spelling of 25113501 in words is "twenty-five million, one hundred thirteen thousand, five hundred one".