25175490020 has 12 divisors (see below), whose sum is σ = 52868529084. Its totient is φ = 10070196000.

The previous prime is 25175490001. The next prime is 25175490023. The reversal of 25175490020 is 2009457152.

It can be written as a sum of positive squares in 2 ways, for example, as 8285368576 + 16890121444 = 91024^2 + 129962^2 .

It is not an unprimeable number, because it can be changed into a prime (25175490023) 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, 629387231 + ... + 629387270.

It is an arithmetic number, because the mean of its divisors is an integer number (4405710757).

Almost surely, 2^25175490020 is an apocalyptic number.

25175490020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25175490020 is an abundant number, since it is smaller than the sum of its proper divisors (27693039064).

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

25175490020 is a wasteful number, since it uses less digits than its factorization.

25175490020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258774510 (or 1258774508 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 25175490020 in words is "twenty-five billion, one hundred seventy-five million, four hundred ninety thousand, twenty".