53520506 has 32 divisors (see below), whose sum is σ = 88678800. Its totient is φ = 24076800.

The previous prime is 53520427. The next prime is 53520527. The reversal of 53520506 is 60502535.

It can be written as a sum of positive squares in 8 ways, for example, as 36784225 + 16736281 = 6065^2 + 4091^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233600 + ... + 233828.

Almost surely, 2^53520506 is an apocalyptic number.

53520506 is a deficient number, since it is larger than the sum of its proper divisors (35158294).

53520506 is a wasteful number, since it uses less digits than its factorization.

53520506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 53520506 is about 7315.7710461714. The cubic root of 53520506 is about 376.8542379886.

It can be divided in two parts, 53520 and 506, that multiplied together give a triangular number (27081120 = T₇₃₅₉).

The spelling of 53520506 in words is "fifty-three million, five hundred twenty thousand, five hundred six".