53405670 has 32 divisors (see below), whose sum is σ = 135714528. Its totient is φ = 13403648.

The previous prime is 53405663. The next prime is 53405711. The reversal of 53405670 is 7650435.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51849 + ... + 52868.

It is an arithmetic number, because the mean of its divisors is an integer number (4241079).

Almost surely, 2^53405670 is an apocalyptic number.

53405670 is an abundant number, since it is smaller than the sum of its proper divisors (82308858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53405670 is a wasteful number, since it uses less digits than its factorization.

53405670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104744.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 53405670 is about 7307.9183082462. The cubic root of 53405670 is about 376.5845131958.

The spelling of 53405670 in words is "fifty-three million, four hundred five thousand, six hundred seventy".