25283572420 has 24 divisors (see below), whose sum is σ = 53582621400. Its totient is φ = 10020644352.

The previous prime is 25283572409. The next prime is 25283572421. The reversal of 25283572420 is 2427538252.

It can be written as a sum of positive squares in 4 ways, for example, as 8408523204 + 16875049216 = 91698^2 + 129904^2 .

It is not an unprimeable number, because it can be changed into a prime (25283572421) 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, 5796805 + ... + 5801164.

It is an arithmetic number, because the mean of its divisors is an integer number (2232609225).

Almost surely, 2^25283572420 is an apocalyptic number.

25283572420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25283572420 is an abundant number, since it is smaller than the sum of its proper divisors (28299048980).

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

25283572420 is a wasteful number, since it uses less digits than its factorization.

25283572420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11598087 (or 11598085 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 25283572420 in words is "twenty-five billion, two hundred eighty-three million, five hundred seventy-two thousand, four hundred twenty".