53009501 has 2 divisors, whose sum is σ = 53009502. Its totient is φ = 53009500.

The previous prime is 53009479. The next prime is 53009531. The reversal of 53009501 is 10590035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47969476 + 5040025 = 6926^2 + 2245^2 .

It is a cyclic number.

It is not a de Polignac number, because 53009501 - 2¹⁴ = 52993117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_3170570 and since 53009501 and 3170570 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53009531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26504750 + 26504751.

It is an arithmetic number, because the mean of its divisors is an integer number (26504751).

Almost surely, 2^53009501 is an apocalyptic number.

It is an amenable number.

53009501 is a deficient number, since it is larger than the sum of its proper divisors (1).

53009501 is an equidigital number, since it uses as much as digits as its factorization.

53009501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 53009501 is about 7280.7623913983. The cubic root of 53009501 is about 375.6510196602.

Adding to 53009501 its reverse (10590035), we get a palindrome (63599536).

The spelling of 53009501 in words is "fifty-three million, nine thousand, five hundred one".