49995251 has 16 divisors (see below), whose sum is σ = 54473760. Its totient is φ = 45849888.

The previous prime is 49995241. The next prime is 49995259. The reversal of 49995251 is 15259994.

It is not a de Polignac number, because 49995251 - 2¹⁴ = 49978867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49995259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253685 + ... + 253881.

It is an arithmetic number, because the mean of its divisors is an integer number (3404610).

Almost surely, 2^49995251 is an apocalyptic number.

49995251 is a deficient number, since it is larger than the sum of its proper divisors (4478509).

49995251 is an equidigital number, since it uses as much as digits as its factorization.

49995251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 253 counting only the distinct ones).

The product of its digits is 145800, while the sum is 44.

The square root of 49995251 is about 7070.7319988810. The cubic root of 49995251 is about 368.3914858510.

The spelling of 49995251 in words is "forty-nine million, nine hundred ninety-five thousand, two hundred fifty-one".