50666402 has 4 divisors (see below), whose sum is σ = 75999606. Its totient is φ = 25333200.

The previous prime is 50666383. The next prime is 50666449. The reversal of 50666402 is 20466605.

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., 48038761 + 2627641 = 6931^2 + 1621^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12666599 + ... + 12666602.

Almost surely, 2^50666402 is an apocalyptic number.

50666402 is a deficient number, since it is larger than the sum of its proper divisors (25333204).

50666402 is a wasteful number, since it uses less digits than its factorization.

50666402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25333203.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 50666402 is about 7118.0335767682. The cubic root of 50666402 is about 370.0326292140.

The spelling of 50666402 in words is "fifty million, six hundred sixty-six thousand, four hundred two".