49158549 has 48 divisors (see below), whose sum is σ = 82225920. Its totient is φ = 28987200.

The previous prime is 49158547. The next prime is 49158553. The reversal of 49158549 is 94585194.

It is not a de Polignac number, because 49158549 - 2¹ = 49158547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49158547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 133764 + ... + 134130.

It is an arithmetic number, because the mean of its divisors is an integer number (1713040).

Almost surely, 2^49158549 is an apocalyptic number.

It is an amenable number.

49158549 is a deficient number, since it is larger than the sum of its proper divisors (33067371).

49158549 is a wasteful number, since it uses less digits than its factorization.

49158549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 422 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 49158549 is about 7011.3157823621. The cubic root of 49158549 is about 366.3248258476.

The spelling of 49158549 in words is "forty-nine million, one hundred fifty-eight thousand, five hundred forty-nine".