53781342 has 32 divisors (see below), whose sum is σ = 111667200. Its totient is φ = 17249760.

The previous prime is 53781323. The next prime is 53781367. The reversal of 53781342 is 24318735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36288 + ... + 37740.

It is an arithmetic number, because the mean of its divisors is an integer number (3489600).

Almost surely, 2^53781342 is an apocalyptic number.

53781342 is an abundant number, since it is smaller than the sum of its proper divisors (57885858).

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

53781342 is a wasteful number, since it uses less digits than its factorization.

53781342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688.

The product of its digits is 20160, while the sum is 33.

The square root of 53781342 is about 7333.5763444584. The cubic root of 53781342 is about 377.4654547866.

The spelling of 53781342 in words is "fifty-three million, seven hundred eighty-one thousand, three hundred forty-two".