53520345 has 40 divisors (see below), whose sum is σ = 96947136. Its totient is φ = 28245024.

The previous prime is 53520331. The next prime is 53520371. The reversal of 53520345 is 54302535.

It is not a de Polignac number, because 53520345 - 2⁷ = 53520217 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41074 + ... + 42356.

Almost surely, 2^53520345 is an apocalyptic number.

It is an amenable number.

53520345 is a deficient number, since it is larger than the sum of its proper divisors (43426791).

53520345 is a wasteful number, since it uses less digits than its factorization.

53520345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403 (or 1394 counting only the distinct ones).

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

The square root of 53520345 is about 7315.7600425383. The cubic root of 53520345 is about 376.8538601048.

The spelling of 53520345 in words is "fifty-three million, five hundred twenty thousand, three hundred forty-five".