49751397 has 12 divisors (see below), whose sum is σ = 72605260. Its totient is φ = 32825088.

The previous prime is 49751389. The next prime is 49751399. The reversal of 49751397 is 79315794.

49751397 is a `hidden beast` number, since 49 + 7 + 513 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34117281 + 15634116 = 5841^2 + 3954^2 .

It is not a de Polignac number, because 49751397 - 2³ = 49751389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49751399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27622 + ... + 29367.

Almost surely, 2^49751397 is an apocalyptic number.

It is an amenable number.

49751397 is a deficient number, since it is larger than the sum of its proper divisors (22853863).

49751397 is a wasteful number, since it uses less digits than its factorization.

49751397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57092 (or 57089 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 49751397 is about 7053.4670198421. The cubic root of 49751397 is about 367.7915609339.

The spelling of 49751397 in words is "forty-nine million, seven hundred fifty-one thousand, three hundred ninety-seven".