25725540558 has 16 divisors (see below), whose sum is σ = 51455612880. Its totient is φ = 8574424896.

The previous prime is 25725540517. The next prime is 25725540559. The reversal of 25725540558 is 85504552752.

It is a happy number.

It is a super-3 number, since 3×25725540558³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25725540559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112663 + ... + 253266.

It is an arithmetic number, because the mean of its divisors is an integer number (3215975805).

Almost surely, 2^25725540558 is an apocalyptic number.

25725540558 is an abundant number, since it is smaller than the sum of its proper divisors (25730072322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25725540558 is a wasteful number, since it uses less digits than its factorization.

25725540558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377651.

The product of its (nonzero) digits is 2800000, while the sum is 48.

The spelling of 25725540558 in words is "twenty-five billion, seven hundred twenty-five million, five hundred forty thousand, five hundred fifty-eight".