245330501 has 4 divisors (see below), whose sum is σ = 264202092. Its totient is φ = 226458912.

The previous prime is 245330479. The next prime is 245330509. The reversal of 245330501 is 105033542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105033542 = 2 ⋅52516771.

It can be written as a sum of positive squares in 2 ways, for example, as 18105025 + 227225476 = 4255^2 + 15074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245330501 is a prime.

It is a super-2 number, since 2×245330501² = 120374109441822002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245330509) 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, 9435776 + ... + 9435801.

It is an arithmetic number, because the mean of its divisors is an integer number (66050523).

Almost surely, 2^245330501 is an apocalyptic number.

It is an amenable number.

245330501 is a deficient number, since it is larger than the sum of its proper divisors (18871591).

245330501 is a wasteful number, since it uses less digits than its factorization.

245330501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18871590.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 245330501 is about 15663.0297516157. The cubic root of 245330501 is about 626.0137157729.

The spelling of 245330501 in words is "two hundred forty-five million, three hundred thirty thousand, five hundred one".