53541405 has 56 divisors (see below), whose sum is σ = 99183192. Its totient is φ = 27713664.

The previous prime is 53541361. The next prime is 53541419. The reversal of 53541405 is 50414535.

It can be written as a sum of positive squares in 4 ways, for example, as 18896409 + 34644996 = 4347^2 + 5886^2 .

It is not a de Polignac number, because 53541405 - 2¹⁶ = 53475869 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 134667 + ... + 135063.

Almost surely, 2^53541405 is an apocalyptic number.

It is an amenable number.

53541405 is a deficient number, since it is larger than the sum of its proper divisors (45641787).

53541405 is an equidigital number, since it uses as much as digits as its factorization.

53541405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 53541405 is about 7317.1992592795. The cubic root of 53541405 is about 376.9032836871.

The spelling of 53541405 in words is "fifty-three million, five hundred forty-one thousand, four hundred five".