49179517 has 2 divisors, whose sum is σ = 49179518. Its totient is φ = 49179516.

The previous prime is 49179511. The next prime is 49179523. The reversal of 49179517 is 71597194.

It is a balanced prime because it is at equal distance from previous prime (49179511) and next prime (49179523).

It can be written as a sum of positive squares in only one way, i.e., 49084036 + 95481 = 7006^2 + 309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49179517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49179511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24589758 + 24589759.

It is an arithmetic number, because the mean of its divisors is an integer number (24589759).

Almost surely, 2^49179517 is an apocalyptic number.

It is an amenable number.

49179517 is a deficient number, since it is larger than the sum of its proper divisors (1).

49179517 is an equidigital number, since it uses as much as digits as its factorization.

49179517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 43.

The square root of 49179517 is about 7012.8109200234. The cubic root of 49179517 is about 366.3769022906.

It can be divided in two parts, 491 and 79517, that added together give a palindrome (80008).

The spelling of 49179517 in words is "forty-nine million, one hundred seventy-nine thousand, five hundred seventeen".