53386620 has 96 divisors (see below), whose sum is σ = 173107200. Its totient is φ = 12040704.

The previous prime is 53386577. The next prime is 53386631. The reversal of 53386620 is 2668335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32376 + ... + 33984.

It is an arithmetic number, because the mean of its divisors is an integer number (1803200).

Almost surely, 2^53386620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53386620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86553600).

53386620 is an abundant number, since it is smaller than the sum of its proper divisors (119720580).

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

53386620 is a wasteful number, since it uses less digits than its factorization.

53386620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 53386620 is about 7306.6148112515. The cubic root of 53386620 is about 376.5397315079.

It can be divided in two parts, 533 and 86620, that added together give a triangular number (87153 = T₄₁₇).

The spelling of 53386620 in words is "fifty-three million, three hundred eighty-six thousand, six hundred twenty".