53213601 has 16 divisors (see below), whose sum is σ = 81221504. Its totient is φ = 30357504.

The previous prime is 53213599. The next prime is 53213617. The reversal of 53213601 is 10631235.

It is not a de Polignac number, because 53213601 - 2¹ = 53213599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53213401) 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, 13665 + ... + 17121.

It is an arithmetic number, because the mean of its divisors is an integer number (5076344).

Almost surely, 2^53213601 is an apocalyptic number.

It is an amenable number.

53213601 is a deficient number, since it is larger than the sum of its proper divisors (28007903).

53213601 is a wasteful number, since it uses less digits than its factorization.

53213601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 53213601 is about 7294.7653149365. The cubic root of 53213601 is about 376.1325194008.

Adding to 53213601 its reverse (10631235), we get a palindrome (63844836).

The spelling of 53213601 in words is "fifty-three million, two hundred thirteen thousand, six hundred one".