245632513 has 8 divisors (see below), whose sum is σ = 295497920. Its totient is φ = 199460880.

The previous prime is 245632511. The next prime is 245632531. The reversal of 245632513 is 315236542.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245632513 - 2¹ = 245632511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245632511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923298 + ... + 923563.

It is an arithmetic number, because the mean of its divisors is an integer number (36937240).

Almost surely, 2^245632513 is an apocalyptic number.

It is an amenable number.

245632513 is a deficient number, since it is larger than the sum of its proper divisors (49865407).

245632513 is a wasteful number, since it uses less digits than its factorization.

245632513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846887.

The product of its digits is 21600, while the sum is 31.

The square root of 245632513 is about 15672.6677052760. The cubic root of 245632513 is about 626.2704933646.

It can be divided in two parts, 2456 and 32513, that added together give a square (34969 = 187²).

The spelling of 245632513 in words is "two hundred forty-five million, six hundred thirty-two thousand, five hundred thirteen".