25478541044 has 48 divisors (see below), whose sum is σ = 49560396480. Its totient is φ = 11363573760.

The previous prime is 25478541043. The next prime is 25478541079. The reversal of 25478541044 is 44014587452.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 25478540986 and 25478541004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25478541043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740822 + ... + 774450.

It is an arithmetic number, because the mean of its divisors is an integer number (1032508260).

Almost surely, 2^25478541044 is an apocalyptic number.

It is an amenable number.

25478541044 is a deficient number, since it is larger than the sum of its proper divisors (24081855436).

25478541044 is a wasteful number, since it uses less digits than its factorization.

25478541044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33968 (or 33966 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 44.

The spelling of 25478541044 in words is "twenty-five billion, four hundred seventy-eight million, five hundred forty-one thousand, forty-four".