53400545 has 32 divisors (see below), whose sum is σ = 74321280. Its totient is φ = 36426240.

The previous prime is 53400499. The next prime is 53400547. The reversal of 53400545 is 54500435.

It is not a de Polignac number, because 53400545 - 2⁶ = 53400481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53400547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142979 + ... + 143351.

It is an arithmetic number, because the mean of its divisors is an integer number (2322540).

Almost surely, 2^53400545 is an apocalyptic number.

53400545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53400545 is a deficient number, since it is larger than the sum of its proper divisors (20920735).

53400545 is a wasteful number, since it uses less digits than its factorization.

53400545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 53400545 is about 7307.5676527830. The cubic root of 53400545 is about 376.5724666761.

The spelling of 53400545 in words is "fifty-three million, four hundred thousand, five hundred forty-five".