53719440 has 40 divisors (see below), whose sum is σ = 166531008. Its totient is φ = 14325120.

The previous prime is 53719433. The next prime is 53719483. The reversal of 53719440 is 4491735.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111676 + ... + 112155.

Almost surely, 2^53719440 is an apocalyptic number.

It is an amenable number.

53719440 is an abundant number, since it is smaller than the sum of its proper divisors (112811568).

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

53719440 is a wasteful number, since it uses less digits than its factorization.

53719440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223847 (or 223841 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 53719440 is about 7329.3546782783. The cubic root of 53719440 is about 377.3205790353.

The spelling of 53719440 in words is "fifty-three million, seven hundred nineteen thousand, four hundred forty".