52645503 has 4 divisors (see below), whose sum is σ = 70194008. Its totient is φ = 35097000.

The previous prime is 52645441. The next prime is 52645507. The reversal of 52645503 is 30554625.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52645503 - 2¹⁷ = 52514431 is a prime.

It is a super-2 number, since 2×52645503² = 5543097972246018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52645507) 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, 8774248 + ... + 8774253.

It is an arithmetic number, because the mean of its divisors is an integer number (17548502).

Almost surely, 2^52645503 is an apocalyptic number.

52645503 is a deficient number, since it is larger than the sum of its proper divisors (17548505).

52645503 is a wasteful number, since it uses less digits than its factorization.

52645503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17548504.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 52645503 is about 7255.7220867395. The cubic root of 52645503 is about 374.7892219937.

The spelling of 52645503 in words is "fifty-two million, six hundred forty-five thousand, five hundred three".