49187951 has 2 divisors, whose sum is σ = 49187952. Its totient is φ = 49187950.

The previous prime is 49187933. The next prime is 49187969. The reversal of 49187951 is 15978194.

It is a balanced prime because it is at equal distance from previous prime (49187933) and next prime (49187969).

It is a cyclic number.

It is not a de Polignac number, because 49187951 - 2¹⁰ = 49186927 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49187921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24593975 + 24593976.

It is an arithmetic number, because the mean of its divisors is an integer number (24593976).

Almost surely, 2^49187951 is an apocalyptic number.

49187951 is a deficient number, since it is larger than the sum of its proper divisors (1).

49187951 is an equidigital number, since it uses as much as digits as its factorization.

49187951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 44.

The square root of 49187951 is about 7013.4122223066. The cubic root of 49187951 is about 366.3978449266.

The spelling of 49187951 in words is "forty-nine million, one hundred eighty-seven thousand, nine hundred fifty-one".