53939642 has 4 divisors (see below), whose sum is σ = 80909466. Its totient is φ = 26969820.

The previous prime is 53939621. The next prime is 53939653. The reversal of 53939642 is 24693935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29149201 + 24790441 = 5399^2 + 4979^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53939642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13484909 + ... + 13484912.

Almost surely, 2^53939642 is an apocalyptic number.

53939642 is a deficient number, since it is larger than the sum of its proper divisors (26969824).

53939642 is a wasteful number, since it uses less digits than its factorization.

53939642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26969823.

The product of its digits is 174960, while the sum is 41.

The square root of 53939642 is about 7344.3612383923. The cubic root of 53939642 is about 377.8354359579.

The spelling of 53939642 in words is "fifty-three million, nine hundred thirty-nine thousand, six hundred forty-two".