405213553 has 8 divisors (see below), whose sum is σ = 419636448. Its totient is φ = 391017984.

The previous prime is 405213541. The next prime is 405213559. The reversal of 405213553 is 355312504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405213553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405213559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53200 + ... + 60337.

It is an arithmetic number, because the mean of its divisors is an integer number (52454556).

Almost surely, 2^405213553 is an apocalyptic number.

405213553 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

405213553 is a deficient number, since it is larger than the sum of its proper divisors (14422895).

405213553 is a wasteful number, since it uses less digits than its factorization.

405213553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113663.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 405213553 is about 20129.9168652034. The cubic root of 405213553 is about 739.9936406807.

The spelling of 405213553 in words is "four hundred five million, two hundred thirteen thousand, five hundred fifty-three".