53420653 has 12 divisors (see below), whose sum is σ = 63237244. Its totient is φ = 44827200.

The previous prime is 53420603. The next prime is 53420659. The reversal of 53420653 is 35602435.

It can be written as a sum of positive squares in 2 ways, for example, as 4937284 + 48483369 = 2222^2 + 6963^2 .

It is not a de Polignac number, because 53420653 - 2²¹ = 51323501 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53420659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15408 + ... + 18553.

Almost surely, 2^53420653 is an apocalyptic number.

It is an amenable number.

53420653 is a deficient number, since it is larger than the sum of its proper divisors (9816591).

53420653 is a wasteful number, since it uses less digits than its factorization.

53420653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33996 (or 33985 counting only the distinct ones).

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

The square root of 53420653 is about 7308.9433572850. The cubic root of 53420653 is about 376.6197269236.

The spelling of 53420653 in words is "fifty-three million, four hundred twenty thousand, six hundred fifty-three".