25502454254 has 4 divisors (see below), whose sum is σ = 38253681384. Its totient is φ = 12751227126.

The previous prime is 25502454253. The next prime is 25502454293. The reversal of 25502454254 is 45245420552.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25502454253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375613562 + ... + 6375613565.

It is an arithmetic number, because the mean of its divisors is an integer number (9563420346).

Almost surely, 2^25502454254 is an apocalyptic number.

25502454254 is a deficient number, since it is larger than the sum of its proper divisors (12751227130).

25502454254 is a wasteful number, since it uses less digits than its factorization.

25502454254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12751227129.

The product of its (nonzero) digits is 320000, while the sum is 38.

The spelling of 25502454254 in words is "twenty-five billion, five hundred two million, four hundred fifty-four thousand, two hundred fifty-four".