53464391 has 4 divisors (see below), whose sum is σ = 53955000. Its totient is φ = 52973784.

The previous prime is 53464381. The next prime is 53464399. The reversal of 53464391 is 19346435.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53464391 - 2²² = 49270087 is a prime.

It is a super-2 number, since 2×53464391² = 5716882210001762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53464399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245141 + ... + 245358.

It is an arithmetic number, because the mean of its divisors is an integer number (13488750).

Almost surely, 2^53464391 is an apocalyptic number.

53464391 is a deficient number, since it is larger than the sum of its proper divisors (490609).

53464391 is a wasteful number, since it uses less digits than its factorization.

53464391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490608.

The product of its digits is 38880, while the sum is 35.

The square root of 53464391 is about 7311.9348328606. The cubic root of 53464391 is about 376.7224843099.

The spelling of 53464391 in words is "fifty-three million, four hundred sixty-four thousand, three hundred ninety-one".