1020554225 has 12 divisors (see below), whose sum is σ = 1309125660. Its totient is φ = 788289600.

The previous prime is 1020554219. The next prime is 1020554231. The reversal of 1020554225 is 5224550201.

It is an interprime number because it is at equal distance from previous prime (1020554219) and next prime (1020554231).

It can be written as a sum of positive squares in 6 ways, for example, as 9759376 + 1010794849 = 3124^2 + 31793^2 .

It is not a de Polignac number, because 1020554225 - 2⁴ = 1020554209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020554194 and 1020554203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 703106 + ... + 704555.

It is an arithmetic number, because the mean of its divisors is an integer number (109093805).

Almost surely, 2^1020554225 is an apocalyptic number.

It is an amenable number.

1020554225 is a deficient number, since it is larger than the sum of its proper divisors (288571435).

1020554225 is a wasteful number, since it uses less digits than its factorization.

1020554225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407700 (or 1407695 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1020554225 is about 31946.1143959637. The cubic root of 1020554225 is about 1006.8049953301.

The spelling of 1020554225 in words is "one billion, twenty million, five hundred fifty-four thousand, two hundred twenty-five".