25606475501380 has 12 divisors (see below), whose sum is σ = 53773598552940. Its totient is φ = 10242590200544.

The previous prime is 25606475501297. The next prime is 25606475501429. The reversal of 25606475501380 is 8310557460652.

It can be written as a sum of positive squares in 2 ways, for example, as 5575605457984 + 20030870043396 = 2361272^2 + 4475586^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640161887515 + ... + 640161887554.

It is an arithmetic number, because the mean of its divisors is an integer number (4481133212745).

Almost surely, 2^{25606475501380} is an apocalyptic number.

25606475501380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25606475501380 is an abundant number, since it is smaller than the sum of its proper divisors (28167123051560).

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

25606475501380 is a wasteful number, since it uses less digits than its factorization.

25606475501380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280323775078 (or 1280323775076 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 25606475501380 in words is "twenty-five trillion, six hundred six billion, four hundred seventy-five million, five hundred one thousand, three hundred eighty".