53145455 has 16 divisors (see below), whose sum is σ = 69755904. Its totient is φ = 38549280.

The previous prime is 53145437. The next prime is 53145503. The reversal of 53145455 is 55454135.

It is a de Polignac number, because none of the positive numbers 2^k-53145455 is a prime.

It is a Duffinian number.

It is a congruent 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, 24422 + ... + 26508.

It is an arithmetic number, because the mean of its divisors is an integer number (4359744).

Almost surely, 2^53145455 is an apocalyptic number.

53145455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53145455 is a deficient number, since it is larger than the sum of its proper divisors (16610449).

53145455 is a wasteful number, since it uses less digits than its factorization.

53145455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566.

The product of its digits is 30000, while the sum is 32.

The square root of 53145455 is about 7290.0929349357. The cubic root of 53145455 is about 375.9718908178.

The spelling of 53145455 in words is "fifty-three million, one hundred forty-five thousand, four hundred fifty-five".