53103505 has 24 divisors (see below), whose sum is σ = 79835112. Its totient is φ = 33610752.

The previous prime is 53103503. The next prime is 53103511. The reversal of 53103505 is 50530135.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7568001 + 45535504 = 2751^2 + 6748^2 .

It is not a de Polignac number, because 53103505 - 2¹ = 53103503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53103503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5152 + ... + 11521.

It is an arithmetic number, because the mean of its divisors is an integer number (3326463).

Almost surely, 2^53103505 is an apocalyptic number.

It is an amenable number.

53103505 is a deficient number, since it is larger than the sum of its proper divisors (26731607).

53103505 is a wasteful number, since it uses less digits than its factorization.

53103505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16705 (or 16698 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 53103505 is about 7287.2151745368. The cubic root of 53103505 is about 375.8729411679.

The spelling of 53103505 in words is "fifty-three million, one hundred three thousand, five hundred five".