253356543 has 24 divisors (see below), whose sum is σ = 399884160. Its totient is φ = 153297360.

The previous prime is 253356533. The next prime is 253356563. The reversal of 253356543 is 345653352.

253356543 is a `hidden beast` number, since 2 + 53 + 3 + 565 + 43 = 666.

It is not a de Polignac number, because 253356543 - 2⁶ = 253356479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253356498 and 253356507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253356503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71430 + ... + 74892.

It is an arithmetic number, because the mean of its divisors is an integer number (16661840).

Almost surely, 2^253356543 is an apocalyptic number.

253356543 is a deficient number, since it is larger than the sum of its proper divisors (146527617).

253356543 is a wasteful number, since it uses less digits than its factorization.

253356543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219 (or 4216 counting only the distinct ones).

The product of its digits is 162000, while the sum is 36.

The square root of 253356543 is about 15917.1776078550. The cubic root of 253356543 is about 632.7673201252.

It can be divided in two parts, 25335 and 6543, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 253356543 in words is "two hundred fifty-three million, three hundred fifty-six thousand, five hundred forty-three".