15225478854 has 16 divisors (see below), whose sum is σ = 30950154480. Its totient is φ = 4991960160.

The previous prime is 15225478813. The next prime is 15225478861. The reversal of 15225478854 is 45887452251.

It is a happy number.

15225478854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15225478797 and 15225478806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20799469 + ... + 20800200.

It is an arithmetic number, because the mean of its divisors is an integer number (1934384655).

Almost surely, 2^15225478854 is an apocalyptic number.

15225478854 is an abundant number, since it is smaller than the sum of its proper divisors (15724675626).

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

15225478854 is a wasteful number, since it uses less digits than its factorization.

15225478854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41599735.

The product of its digits is 3584000, while the sum is 51.

The spelling of 15225478854 in words is "fifteen billion, two hundred twenty-five million, four hundred seventy-eight thousand, eight hundred fifty-four".