50481691 has 4 divisors (see below), whose sum is σ = 54364912. Its totient is φ = 46598472.

The previous prime is 50481631. The next prime is 50481703. The reversal of 50481691 is 19618405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19618405 = 5 ⋅3923681.

It is a cyclic number.

It is not a de Polignac number, because 50481691 - 2²⁵ = 16927259 is a prime.

It is a super-2 number, since 2×50481691² = 5096802252438962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50481631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1941591 + ... + 1941616.

It is an arithmetic number, because the mean of its divisors is an integer number (13591228).

Almost surely, 2^50481691 is an apocalyptic number.

50481691 is a deficient number, since it is larger than the sum of its proper divisors (3883221).

50481691 is a wasteful number, since it uses less digits than its factorization.

50481691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883220.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 50481691 is about 7105.0468682479. The cubic root of 50481691 is about 369.5824142034.

The spelling of 50481691 in words is "fifty million, four hundred eighty-one thousand, six hundred ninety-one".