522211925 has 6 divisors (see below), whose sum is σ = 647542818. Its totient is φ = 417769520.

The previous prime is 522211919. The next prime is 522211931. The reversal of 522211925 is 529112225.

It is an interprime number because it is at equal distance from previous prime (522211919) and next prime (522211931).

It can be written as a sum of positive squares in 3 ways, for example, as 26615281 + 495596644 = 5159^2 + 22262^2 .

It is not a de Polignac number, because 522211925 - 2¹⁶ = 522146389 is a prime.

It is a super-2 number, since 2×522211925² = 545410589224411250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10444214 + ... + 10444263.

It is an arithmetic number, because the mean of its divisors is an integer number (107923803).

Almost surely, 2^522211925 is an apocalyptic number.

It is an amenable number.

522211925 is a deficient number, since it is larger than the sum of its proper divisors (125330893).

522211925 is a wasteful number, since it uses less digits than its factorization.

522211925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20888487 (or 20888482 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 522211925 is about 22851.9566995914. The cubic root of 522211925 is about 805.2837367662.

The spelling of 522211925 in words is "five hundred twenty-two million, two hundred eleven thousand, nine hundred twenty-five".