284811020559025 has 81 divisors (see below), whose sum is σ = 361886536399297. Its totient is φ = 222357321289600.

The previous prime is 284811020559019. The next prime is 284811020559031. The reversal of 284811020559025 is 520955020118482.

The square root of 284811020559025 is 16876345.

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

It is an interprime number because it is at equal distance from previous prime (284811020559019) and next prime (284811020559031).

It can be written as a sum of positive squares in 4 ways, for example, as 830958041761 + 283980062517264 = 911569^2 + 16851708^2 .

It is not a de Polignac number, because 284811020559025 - 2⁴¹ = 282611997303473 is a prime.

It is a super-2 number, since 2×284811020559025² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 820781038902 + ... + 820781039248.

Almost surely, 2^{284811020559025} is an apocalyptic number.

284811020559025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

284811020559025 is the 16876345-th square number.

284811020559025 is the 8438173-rd centered octagonal number.

It is an amenable number.

284811020559025 is a deficient number, since it is larger than the sum of its proper divisors (77075515840272).

284811020559025 is an frugal number, since it uses more digits than its factorization.

284811020559025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 52.

The spelling of 284811020559025 in words is "two hundred eighty-four trillion, eight hundred eleven billion, twenty million, five hundred fifty-nine thousand, twenty-five".