53240455 has 4 divisors (see below), whose sum is σ = 63888552. Its totient is φ = 42592360.

The previous prime is 53240441. The next prime is 53240459. The reversal of 53240455 is 55404235.

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

It is a de Polignac number, because none of the positive numbers 2^k-53240455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53240459) 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, 5324041 + ... + 5324050.

It is an arithmetic number, because the mean of its divisors is an integer number (15972138).

Almost surely, 2^53240455 is an apocalyptic number.

53240455 is a deficient number, since it is larger than the sum of its proper divisors (10648097).

53240455 is a wasteful number, since it uses less digits than its factorization.

53240455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10648096.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 53240455 is about 7296.6057177293. The cubic root of 53240455 is about 376.1957799450.

The spelling of 53240455 in words is "fifty-three million, two hundred forty thousand, four hundred fifty-five".