53071620 has 96 divisors (see below), whose sum is σ = 179843328. Its totient is φ = 11415552.

The previous prime is 53071609. The next prime is 53071639. The reversal of 53071620 is 2617035.

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, 3424 + ... + 10856.

It is an arithmetic number, because the mean of its divisors is an integer number (1873368).

Almost surely, 2^53071620 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 53071620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89921664).

53071620 is an abundant number, since it is smaller than the sum of its proper divisors (126771708).

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

53071620 is a wasteful number, since it uses less digits than its factorization.

53071620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7469 (or 7467 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 53071620 is about 7285.0271104506. The cubic root of 53071620 is about 375.7976974956.

Adding to 53071620 its reverse (2617035), we get a palindrome (55688655).

The spelling of 53071620 in words is "fifty-three million, seventy-one thousand, six hundred twenty".