49156917 has 16 divisors (see below), whose sum is σ = 68940288. Its totient is φ = 31112640.

The previous prime is 49156897. The next prime is 49156927. The reversal of 49156917 is 71965194.

It is not a de Polignac number, because 49156917 - 2¹⁰ = 49155893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49156927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58 + ... + 9915.

It is an arithmetic number, because the mean of its divisors is an integer number (4308768).

Almost surely, 2^49156917 is an apocalyptic number.

It is an amenable number.

49156917 is a deficient number, since it is larger than the sum of its proper divisors (19783371).

49156917 is a wasteful number, since it uses less digits than its factorization.

49156917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10060.

The product of its digits is 68040, while the sum is 42.

The square root of 49156917 is about 7011.1993981059. The cubic root of 49156917 is about 366.3207719666.

The spelling of 49156917 in words is "forty-nine million, one hundred fifty-six thousand, nine hundred seventeen".