1508020840225 has 27 divisors (see below), whose sum is σ = 1877552249817. Its totient is φ = 1201529172480.

The previous prime is 1508020840211. The next prime is 1508020840273. The reversal of 1508020840225 is 5220480208051.

The square root of 1508020840225 is 1228015.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1343149201 + 1506677691024 = 36649^2 + 1227468^2 .

It is not a de Polignac number, because 1508020840225 - 2⁹ = 1508020839713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2756893402 + ... + 2756893948.

Almost surely, 2^{1508020840225} is an apocalyptic number.

1508020840225 is the 1228015-th square number.

1508020840225 is the 614008-th centered octagonal number.

It is an amenable number.

1508020840225 is a deficient number, since it is larger than the sum of its proper divisors (369531409592).

1508020840225 is an frugal number, since it uses more digits than its factorization.

1508020840225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002 (or 1001 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 37.

The spelling of 1508020840225 in words is "one trillion, five hundred eight billion, twenty million, eight hundred forty thousand, two hundred twenty-five".