53771394 has 16 divisors (see below), whose sum is σ = 111251520. Its totient is φ = 17305680.

The previous prime is 53771381. The next prime is 53771411. The reversal of 53771394 is 49317735.

It is a happy 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, 154342 + ... + 154689.

It is an arithmetic number, because the mean of its divisors is an integer number (6953220).

Almost surely, 2^53771394 is an apocalyptic number.

53771394 is an abundant number, since it is smaller than the sum of its proper divisors (57480126).

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

53771394 is a wasteful number, since it uses less digits than its factorization.

53771394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309065.

The product of its digits is 79380, while the sum is 39.

The square root of 53771394 is about 7332.8980628398. The cubic root of 53771394 is about 377.4421799373.

The spelling of 53771394 in words is "fifty-three million, seven hundred seventy-one thousand, three hundred ninety-four".