53345620 has 24 divisors (see below), whose sum is σ = 112163688. Its totient is φ = 21312000.

The previous prime is 53345603. The next prime is 53345627. The reversal of 53345620 is 2654335.

It can be written as a sum of positive squares in 4 ways, for example, as 318096 + 53027524 = 564^2 + 7282^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53345627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28720 + ... + 30520.

It is an arithmetic number, because the mean of its divisors is an integer number (4673487).

Almost surely, 2^53345620 is an apocalyptic number.

It is an amenable number.

53345620 is an abundant number, since it is smaller than the sum of its proper divisors (58818068).

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

53345620 is a wasteful number, since it uses less digits than its factorization.

53345620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291 (or 3289 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 53345620 is about 7303.8085955206. The cubic root of 53345620 is about 376.4433148230.

Adding to 53345620 its reverse (2654335), we get a palindrome (55999955).

It can be divided in two parts, 5 and 3345620, that multiplied together give a square (16728100 = 4090²).

The spelling of 53345620 in words is "fifty-three million, three hundred forty-five thousand, six hundred twenty".