53759640 has 128 divisors (see below), whose sum is σ = 177811200. Its totient is φ = 12894720.

The previous prime is 53759633. The next prime is 53759653. The reversal of 53759640 is 4695735.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 183334 + ... + 183626.

It is an arithmetic number, because the mean of its divisors is an integer number (1389150).

Almost surely, 2^53759640 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 53759640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88905600).

53759640 is an abundant number, since it is smaller than the sum of its proper divisors (124051560).

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

53759640 is a wasteful number, since it uses less digits than its factorization.

53759640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 53759640 is about 7332.0965623756. The cubic root of 53759640 is about 377.4146759781.

The spelling of 53759640 in words is "fifty-three million, seven hundred fifty-nine thousand, six hundred forty".