53624405 has 4 divisors (see below), whose sum is σ = 64349292. Its totient is φ = 42899520.

The previous prime is 53624401. The next prime is 53624407. The reversal of 53624405 is 50442635.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17648401 + 35976004 = 4201^2 + 5998^2 .

It is not a de Polignac number, because 53624405 - 2² = 53624401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53624401) 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, 5362436 + ... + 5362445.

It is an arithmetic number, because the mean of its divisors is an integer number (16087323).

Almost surely, 2^53624405 is an apocalyptic number.

It is an amenable number.

53624405 is a deficient number, since it is larger than the sum of its proper divisors (10724887).

53624405 is a wasteful number, since it uses less digits than its factorization.

53624405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10724886.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 53624405 is about 7322.8686318956. The cubic root of 53624405 is about 377.0979418927.

The spelling of 53624405 in words is "fifty-three million, six hundred twenty-four thousand, four hundred five".