53618370 has 32 divisors (see below), whose sum is σ = 138583872. Its totient is φ = 13198272.

The previous prime is 53618353. The next prime is 53618381. The reversal of 53618370 is 7381635.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68352 + ... + 69131.

It is an arithmetic number, because the mean of its divisors is an integer number (4330746).

Almost surely, 2^53618370 is an apocalyptic number.

53618370 is an abundant number, since it is smaller than the sum of its proper divisors (84965502).

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

53618370 is a wasteful number, since it uses less digits than its factorization.

53618370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137506.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 53618370 is about 7322.4565550094. The cubic root of 53618370 is about 377.0837949046.

It can be divided in two parts, 5361 and 8370, that added together give a palindrome (13731).

The spelling of 53618370 in words is "fifty-three million, six hundred eighteen thousand, three hundred seventy".