49777645 has 8 divisors (see below), whose sum is σ = 59842656. Its totient is φ = 39749136.

The previous prime is 49777639. The next prime is 49777667. The reversal of 49777645 is 54677794.

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

It is a cyclic number.

It is not a de Polignac number, because 49777645 - 2⁵ = 49777613 is a prime.

It is a super-3 number, since 3×49777645³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6027 + ... + 11656.

It is an arithmetic number, because the mean of its divisors is an integer number (7480332).

Almost surely, 2^49777645 is an apocalyptic number.

It is an amenable number.

49777645 is a deficient number, since it is larger than the sum of its proper divisors (10065011).

49777645 is a wasteful number, since it uses less digits than its factorization.

49777645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18251.

The product of its digits is 1481760, while the sum is 49.

The square root of 49777645 is about 7055.3274197588. The cubic root of 49777645 is about 367.8562297757.

The spelling of 49777645 in words is "forty-nine million, seven hundred seventy-seven thousand, six hundred forty-five".