49197745 has 32 divisors (see below), whose sum is σ = 67495680. Its totient is φ = 34191360.

The previous prime is 49197739. The next prime is 49197749. The reversal of 49197745 is 54779194.

It is not a de Polignac number, because 49197745 - 2³ = 49197737 is a prime.

It is a super-2 number, since 2×49197745² = 4840836226170050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49197695 and 49197704.

It is not an unprimeable number, because it can be changed into a prime (49197749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65844 + ... + 66586.

It is an arithmetic number, because the mean of its divisors is an integer number (2109240).

Almost surely, 2^49197745 is an apocalyptic number.

It is an amenable number.

49197745 is a deficient number, since it is larger than the sum of its proper divisors (18297935).

49197745 is a wasteful number, since it uses less digits than its factorization.

49197745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825.

The product of its digits is 317520, while the sum is 46.

The square root of 49197745 is about 7014.1104211439. The cubic root of 49197745 is about 366.4221616022.

The spelling of 49197745 in words is "forty-nine million, one hundred ninety-seven thousand, seven hundred forty-five".