213053725 has 6 divisors (see below), whose sum is σ = 264186650. Its totient is φ = 170442960.

The previous prime is 213053699. The next prime is 213053767. The reversal of 213053725 is 527350312.

It can be written as a sum of positive squares in 3 ways, for example, as 46049796 + 167003929 = 6786^2 + 12923^2 .

It is not a de Polignac number, because 213053725 - 2¹³ = 213045533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213053693 and 213053702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4261050 + ... + 4261099.

Almost surely, 2^213053725 is an apocalyptic number.

213053725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213053725 is a deficient number, since it is larger than the sum of its proper divisors (51132925).

213053725 is an equidigital number, since it uses as much as digits as its factorization.

213053725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8522159 (or 8522154 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 213053725 is about 14596.3599914499. The cubic root of 213053725 is about 597.2594691350.

It can be divided in two parts, 2130 and 53725, that added together give a palindrome (55855).

The spelling of 213053725 in words is "two hundred thirteen million, fifty-three thousand, seven hundred twenty-five".