245513501 has 4 divisors (see below), whose sum is σ = 246799104. Its totient is φ = 244227900.

The previous prime is 245513491. The next prime is 245513503. The reversal of 245513501 is 105315542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245513501 - 2¹⁴ = 245497117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245513503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642515 + ... + 642896.

It is an arithmetic number, because the mean of its divisors is an integer number (61699776).

Almost surely, 2^245513501 is an apocalyptic number.

It is an amenable number.

245513501 is a deficient number, since it is larger than the sum of its proper divisors (1285603).

245513501 is a wasteful number, since it uses less digits than its factorization.

245513501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285602.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 245513501 is about 15668.8704442918. The cubic root of 245513501 is about 626.1693317502.

The spelling of 245513501 in words is "two hundred forty-five million, five hundred thirteen thousand, five hundred one".