50706405 has 20 divisors (see below), whose sum is σ = 90896652. Its totient is φ = 27043200.

The previous prime is 50706389. The next prime is 50706431. The reversal of 50706405 is 50460705.

It can be written as a sum of positive squares in 2 ways, for example, as 19368801 + 31337604 = 4401^2 + 5598^2 .

It is not a de Polignac number, because 50706405 - 2⁴ = 50706389 is a prime.

It is a super-2 number, since 2×50706405² = 5142279016048050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62196 + ... + 63005.

Almost surely, 2^50706405 is an apocalyptic number.

It is an amenable number.

50706405 is a deficient number, since it is larger than the sum of its proper divisors (40190247).

50706405 is a wasteful number, since it uses less digits than its factorization.

50706405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125218 (or 125209 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 50706405 is about 7120.8429978479. The cubic root of 50706405 is about 370.1299884153.

The spelling of 50706405 in words is "fifty million, seven hundred six thousand, four hundred five".