53340945 has 16 divisors (see below), whose sum is σ = 97537920. Its totient is φ = 24384384.

The previous prime is 53340929. The next prime is 53340953. The reversal of 53340945 is 54904335.

It is not a de Polignac number, because 53340945 - 2⁴ = 53340929 is a prime.

It is a Curzon number.

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, 253900 + ... + 254109.

It is an arithmetic number, because the mean of its divisors is an integer number (6096120).

Almost surely, 2^53340945 is an apocalyptic number.

It is an amenable number.

53340945 is a deficient number, since it is larger than the sum of its proper divisors (44196975).

53340945 is a wasteful number, since it uses less digits than its factorization.

53340945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508024.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 53340945 is about 7303.4885500013. The cubic root of 53340945 is about 376.4323178320.

It can be divided in two parts, 53340 and 945, that added together give a triangular number (54285 = T₃₂₉).

The spelling of 53340945 in words is "fifty-three million, three hundred forty thousand, nine hundred forty-five".