53520453 has 32 divisors (see below), whose sum is σ = 91136000. Its totient is φ = 30408048.

The previous prime is 53520427. The next prime is 53520527. The reversal of 53520453 is 35402535.

It is not a de Polignac number, because 53520453 - 2¹⁰ = 53519429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53520253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36900 + ... + 38322.

It is an arithmetic number, because the mean of its divisors is an integer number (2848000).

Almost surely, 2^53520453 is an apocalyptic number.

It is an amenable number.

53520453 is a deficient number, since it is larger than the sum of its proper divisors (37615547).

53520453 is a wasteful number, since it uses less digits than its factorization.

53520453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638 (or 1632 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 53520453 is about 7315.7674238592. The cubic root of 53520453 is about 376.8541135921.

Adding to 53520453 its reverse (35402535), we get a palindrome (88922988).

The spelling of 53520453 in words is "fifty-three million, five hundred twenty thousand, four hundred fifty-three".