1020602025 has 30 divisors (see below), whose sum is σ = 1890511502. Its totient is φ = 544320000.

The previous prime is 1020601999. The next prime is 1020602029. The reversal of 1020602025 is 5202060201.

It can be written as a sum of positive squares in 3 ways, for example, as 374544 + 1020227481 = 612^2 + 31941^2 .

It is not a de Polignac number, because 1020602025 - 2⁵ = 1020601993 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020601989 and 1020602007.

It is not an unprimeable number, because it can be changed into a prime (1020602029) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 249976 + ... + 254025.

Almost surely, 2^1020602025 is an apocalyptic number.

1020602025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020602025 is a deficient number, since it is larger than the sum of its proper divisors (869909477).

1020602025 is an equidigital number, since it uses as much as digits as its factorization.

1020602025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504023 (or 504009 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1020602025 is about 31946.8625220068. The cubic root of 1020602025 is about 1006.8207137591.

Adding to 1020602025 its reverse (5202060201), we get a palindrome (6222662226).

The spelling of 1020602025 in words is "one billion, twenty million, six hundred two thousand, twenty-five".