49151555 has 8 divisors (see below), whose sum is σ = 59104944. Its totient is φ = 39239200.

The previous prime is 49151533. The next prime is 49151561. The reversal of 49151555 is 55515194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49151555 - 2¹⁶ = 49086019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7556 + ... + 12465.

It is an arithmetic number, because the mean of its divisors is an integer number (7388118).

Almost surely, 2^49151555 is an apocalyptic number.

49151555 is a deficient number, since it is larger than the sum of its proper divisors (9953389).

49151555 is a wasteful number, since it uses less digits than its factorization.

49151555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20517.

The product of its digits is 22500, while the sum is 35.

The square root of 49151555 is about 7010.8169994659. The cubic root of 49151555 is about 366.3074521497.

The spelling of 49151555 in words is "forty-nine million, one hundred fifty-one thousand, five hundred fifty-five".