50491149 has 4 divisors (see below), whose sum is σ = 67321536. Its totient is φ = 33660764.

The previous prime is 50491127. The next prime is 50491169. The reversal of 50491149 is 94119405.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50491149 - 2¹² = 50487053 is a prime.

It is a super-2 number, since 2×50491149² = 5098712254680402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50491169) 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, 8415189 + ... + 8415194.

It is an arithmetic number, because the mean of its divisors is an integer number (16830384).

Almost surely, 2^50491149 is an apocalyptic number.

It is an amenable number.

50491149 is a deficient number, since it is larger than the sum of its proper divisors (16830387).

50491149 is a wasteful number, since it uses less digits than its factorization.

50491149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16830386.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 50491149 is about 7105.7124202996. The cubic root of 50491149 is about 369.6054938067.

The spelling of 50491149 in words is "fifty million, four hundred ninety-one thousand, one hundred forty-nine".