53361511 has 16 divisors (see below), whose sum is σ = 63037440. Its totient is φ = 44215200.

The previous prime is 53361499. The next prime is 53361523. The reversal of 53361511 is 11516335.

It is an interprime number because it is at equal distance from previous prime (53361499) and next prime (53361523).

It is a cyclic number.

It is not a de Polignac number, because 53361511 - 2⁹ = 53360999 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 (53361551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45786 + ... + 46936.

It is an arithmetic number, because the mean of its divisors is an integer number (3939840).

Almost surely, 2^53361511 is an apocalyptic number.

53361511 is a deficient number, since it is larger than the sum of its proper divisors (9675929).

53361511 is a wasteful number, since it uses less digits than its factorization.

53361511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374.

The product of its digits is 1350, while the sum is 25.

The square root of 53361511 is about 7304.8963716127. The cubic root of 53361511 is about 376.4806903802.

Adding to 53361511 its reverse (11516335), we get a palindrome (64877846).

The spelling of 53361511 in words is "fifty-three million, three hundred sixty-one thousand, five hundred eleven".