53698905 has 72 divisors (see below), whose sum is σ = 105513408. Its totient is φ = 25204608.

The previous prime is 53698901. The next prime is 53698961. The reversal of 53698905 is 50989635.

53698905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53698905 - 2² = 53698901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53698901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 174762 + ... + 175068.

It is an arithmetic number, because the mean of its divisors is an integer number (1465464).

Almost surely, 2^53698905 is an apocalyptic number.

It is an amenable number.

53698905 is a deficient number, since it is larger than the sum of its proper divisors (51814503).

53698905 is a wasteful number, since it uses less digits than its factorization.

53698905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 53698905 is about 7327.9536707051. The cubic root of 53698905 is about 377.2724942353.

The spelling of 53698905 in words is "fifty-three million, six hundred ninety-eight thousand, nine hundred five".