49578154 has 16 divisors (see below), whose sum is σ = 78961608. Its totient is φ = 23265792.

The previous prime is 49578149. The next prime is 49578157. The reversal of 49578154 is 45187594.

It can be written as a sum of positive squares in 4 ways, for example, as 41254929 + 8323225 = 6423^2 + 2885^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49578154.

It is not an unprimeable number, because it can be changed into a prime (49578157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11662 + ... + 15334.

Almost surely, 2^49578154 is an apocalyptic number.

49578154 is a deficient number, since it is larger than the sum of its proper divisors (29383454).

49578154 is a wasteful number, since it uses less digits than its factorization.

49578154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089.

The product of its digits is 201600, while the sum is 43.

The square root of 49578154 is about 7041.1756120693. The cubic root of 49578154 is about 367.3641597694.

The spelling of 49578154 in words is "forty-nine million, five hundred seventy-eight thousand, one hundred fifty-four".