49780137 has 8 divisors (see below), whose sum is σ = 72407520. Its totient is φ = 30169760.

The previous prime is 49780121. The next prime is 49780151. The reversal of 49780137 is 73108794.

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 49780137 - 2⁴ = 49780121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49780095 and 49780104.

It is not an unprimeable number, because it can be changed into a prime (49780117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754212 + ... + 754277.

It is an arithmetic number, because the mean of its divisors is an integer number (9050940).

Almost surely, 2^49780137 is an apocalyptic number.

It is an amenable number.

49780137 is a deficient number, since it is larger than the sum of its proper divisors (22627383).

49780137 is a wasteful number, since it uses less digits than its factorization.

49780137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508503.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 49780137 is about 7055.5040216841. The cubic root of 49780137 is about 367.8623682905.

The spelling of 49780137 in words is "forty-nine million, seven hundred eighty thousand, one hundred thirty-seven".