25201546423 has 4 divisors (see below), whose sum is σ = 25201912968. Its totient is φ = 25201179880.

The previous prime is 25201546373. The next prime is 25201546471. The reversal of 25201546423 is 32464510252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25201546423 is a prime.

It is a super-2 number, since 2×25201546423² (a number of 22 digits) contains 22 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 (25201546823) 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, 45736 + ... + 229117.

It is an arithmetic number, because the mean of its divisors is an integer number (6300478242).

Almost surely, 2^25201546423 is an apocalyptic number.

25201546423 is a deficient number, since it is larger than the sum of its proper divisors (366545).

25201546423 is an equidigital number, since it uses as much as digits as its factorization.

25201546423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366544.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 25201546423 in words is "twenty-five billion, two hundred one million, five hundred forty-six thousand, four hundred twenty-three".