25145555254 has 8 divisors (see below), whose sum is σ = 37880214840. Its totient is φ = 12518816976.

The previous prime is 25145555231. The next prime is 25145555257. The reversal of 25145555254 is 45255554152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25145555254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25145555257) 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, 26979744 + ... + 26980675.

It is an arithmetic number, because the mean of its divisors is an integer number (4735026855).

Almost surely, 2^25145555254 is an apocalyptic number.

25145555254 is a deficient number, since it is larger than the sum of its proper divisors (12734659586).

25145555254 is a wasteful number, since it uses less digits than its factorization.

25145555254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53960654.

The product of its digits is 1000000, while the sum is 43.

The spelling of 25145555254 in words is "twenty-five billion, one hundred forty-five million, five hundred fifty-five thousand, two hundred fifty-four".