53357620 has 12 divisors (see below), whose sum is σ = 112051044. Its totient is φ = 21343040.

The previous prime is 53357617. The next prime is 53357621. The reversal of 53357620 is 2675335.

It can be written as a sum of positive squares in 2 ways, for example, as 20593444 + 32764176 = 4538^2 + 5724^2 .

It is a super-2 number, since 2×53357620² = 5694071224128800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53357621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333921 + ... + 1333960.

It is an arithmetic number, because the mean of its divisors is an integer number (9337587).

Almost surely, 2^53357620 is an apocalyptic number.

It is an amenable number.

53357620 is an abundant number, since it is smaller than the sum of its proper divisors (58693424).

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

53357620 is a wasteful number, since it uses less digits than its factorization.

53357620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667890 (or 2667888 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 53357620 is about 7304.6300385440. The cubic root of 53357620 is about 376.4715394526.

The spelling of 53357620 in words is "fifty-three million, three hundred fifty-seven thousand, six hundred twenty".