52215053 has 4 divisors (see below), whose sum is σ = 56961888. Its totient is φ = 47468220.

The previous prime is 52215049. The next prime is 52215071. The reversal of 52215053 is 35051225.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52215053 - 2² = 52215049 is a prime.

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 (52215853) 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, 2373401 + ... + 2373422.

It is an arithmetic number, because the mean of its divisors is an integer number (14240472).

Almost surely, 2^52215053 is an apocalyptic number.

It is an amenable number.

52215053 is a deficient number, since it is larger than the sum of its proper divisors (4746835).

52215053 is a wasteful number, since it uses less digits than its factorization.

52215053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746834.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 52215053 is about 7225.9984085246. The cubic root of 52215053 is about 373.7649513972.

Adding to 52215053 its sum of digits (23), we get a square (52215076 = 7226²).

Adding to 52215053 its reverse (35051225), we get a palindrome (87266278).

The spelling of 52215053 in words is "fifty-two million, two hundred fifteen thousand, fifty-three".