25142513 has 4 divisors (see below), whose sum is σ = 27428208. Its totient is φ = 22856820.

The previous prime is 25142503. The next prime is 25142527. The reversal of 25142513 is 31524152.

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 25142513 - 2¹⁰ = 25141489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25142503) 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, 1142831 + ... + 1142852.

It is an arithmetic number, because the mean of its divisors is an integer number (6857052).

Almost surely, 2^25142513 is an apocalyptic number.

It is an amenable number.

25142513 is a deficient number, since it is larger than the sum of its proper divisors (2285695).

25142513 is a wasteful number, since it uses less digits than its factorization.

25142513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285694.

The product of its digits is 1200, while the sum is 23.

The square root of 25142513 is about 5014.2310477281. The cubic root of 25142513 is about 292.9563354424.

Adding to 25142513 its reverse (31524152), we get a palindrome (56666665).

The spelling of 25142513 in words is "twenty-five million, one hundred forty-two thousand, five hundred thirteen".