50406531 has 8 divisors (see below), whose sum is σ = 76809984. Its totient is φ = 28803720.

The previous prime is 50406529. The next prime is 50406533. The reversal of 50406531 is 13560405.

It is an interprime number because it is at equal distance from previous prime (50406529) and next prime (50406533).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50406531 - 2¹ = 50406529 is a prime.

It is a super-2 number, since 2×50406531² = 5081636734907922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50406533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200135 + ... + 1200176.

It is an arithmetic number, because the mean of its divisors is an integer number (9601248).

Almost surely, 2^50406531 is an apocalyptic number.

50406531 is a deficient number, since it is larger than the sum of its proper divisors (26403453).

50406531 is a wasteful number, since it uses less digits than its factorization.

50406531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400321.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 50406531 is about 7099.7557000224. The cubic root of 50406531 is about 369.3989046918.

Adding to 50406531 its reverse (13560405), we get a palindrome (63966936).

It can be divided in two parts, 50406 and 531, that multiplied together give a triangular number (26765586 = T₇₃₁₆).

The spelling of 50406531 in words is "fifty million, four hundred six thousand, five hundred thirty-one".