53237405 has 8 divisors (see below), whose sum is σ = 68799192. Its totient is φ = 39313728.

The previous prime is 53237399. The next prime is 53237407. The reversal of 53237405 is 50473235.

It can be written as a sum of positive squares in 4 ways, for example, as 34969 + 53202436 = 187^2 + 7294^2 .

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-53237405 is a prime.

It is a super-2 number, since 2×53237405² = 5668442582268050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53237407) 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, 409454 + ... + 409583.

It is an arithmetic number, because the mean of its divisors is an integer number (8599899).

Almost surely, 2^53237405 is an apocalyptic number.

It is an amenable number.

53237405 is a deficient number, since it is larger than the sum of its proper divisors (15561787).

53237405 is a wasteful number, since it uses less digits than its factorization.

53237405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819055.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 53237405 is about 7296.3967134470. The cubic root of 53237405 is about 376.1885960655.

The spelling of 53237405 in words is "fifty-three million, two hundred thirty-seven thousand, four hundred five".