53062640 has 20 divisors (see below), whose sum is σ = 123370824. Its totient is φ = 21225024.

The previous prime is 53062637. The next prime is 53062643. The reversal of 53062640 is 4626035.

It is an interprime number because it is at equal distance from previous prime (53062637) and next prime (53062643).

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53062643) 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, 331562 + ... + 331721.

Almost surely, 2^53062640 is an apocalyptic number.

It is an amenable number.

53062640 is an abundant number, since it is smaller than the sum of its proper divisors (70308184).

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

53062640 is a wasteful number, since it uses less digits than its factorization.

53062640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663296 (or 663290 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 53062640 is about 7284.4107517355. The cubic root of 53062640 is about 375.7765006445.

Adding to 53062640 its reverse (4626035), we get a palindrome (57688675).

The spelling of 53062640 in words is "fifty-three million, sixty-two thousand, six hundred forty".