49645151 has 4 divisors (see below), whose sum is σ = 52565472. Its totient is φ = 46724832.

The previous prime is 49645133. The next prime is 49645159. The reversal of 49645151 is 15154694.

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 49645151 - 2¹⁸ = 49383007 is a prime.

It is a Duffinian number.

49645151 is a modest number, since divided by 5151 gives 4964 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49645159) 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, 1460135 + ... + 1460168.

It is an arithmetic number, because the mean of its divisors is an integer number (13141368).

Almost surely, 2^49645151 is an apocalyptic number.

49645151 is a deficient number, since it is larger than the sum of its proper divisors (2920321).

49645151 is a wasteful number, since it uses less digits than its factorization.

49645151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920320.

The product of its digits is 21600, while the sum is 35.

The square root of 49645151 is about 7045.9315210978. The cubic root of 49645151 is about 367.5295633891.

The spelling of 49645151 in words is "forty-nine million, six hundred forty-five thousand, one hundred fifty-one".