49154551 has 4 divisors (see below), whose sum is σ = 49176504. Its totient is φ = 49132600.

The previous prime is 49154549. The next prime is 49154563. The reversal of 49154551 is 15545194.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49154551 - 2¹ = 49154549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49154851) 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, 7180 + ... + 12241.

It is an arithmetic number, because the mean of its divisors is an integer number (12294126).

Almost surely, 2^49154551 is an apocalyptic number.

49154551 is a deficient number, since it is larger than the sum of its proper divisors (21953).

49154551 is a wasteful number, since it uses less digits than its factorization.

49154551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21952.

The product of its digits is 18000, while the sum is 34.

The square root of 49154551 is about 7011.0306660291. The cubic root of 49154551 is about 366.3148946733.

The spelling of 49154551 in words is "forty-nine million, one hundred fifty-four thousand, five hundred fifty-one".