25015342423 has 4 divisors (see below), whose sum is σ = 25625472768. Its totient is φ = 24405212080.

The previous prime is 25015342421. The next prime is 25015342439. The reversal of 25015342423 is 32424351052.

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

It is a cyclic number.

It is not a de Polignac number, because 25015342423 - 2¹ = 25015342421 is a prime.

It is a super-3 number, since 3×25015342423³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25015342421) 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, 305065111 + ... + 305065192.

It is an arithmetic number, because the mean of its divisors is an integer number (6406368192).

Almost surely, 2^25015342423 is an apocalyptic number.

25015342423 is a deficient number, since it is larger than the sum of its proper divisors (610130345).

25015342423 is an equidigital number, since it uses as much as digits as its factorization.

25015342423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610130344.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 25015342423 its reverse (32424351052), we get a palindrome (57439693475).

The spelling of 25015342423 in words is "twenty-five billion, fifteen million, three hundred forty-two thousand, four hundred twenty-three".