49878533 has 2 divisors, whose sum is σ = 49878534. Its totient is φ = 49878532.

The previous prime is 49878523. The next prime is 49878557. The reversal of 49878533 is 33587894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49801249 + 77284 = 7057^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 49878533 - 2⁸ = 49878277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49878503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24939266 + 24939267.

It is an arithmetic number, because the mean of its divisors is an integer number (24939267).

Almost surely, 2^49878533 is an apocalyptic number.

It is an amenable number.

49878533 is a deficient number, since it is larger than the sum of its proper divisors (1).

49878533 is an equidigital number, since it uses as much as digits as its factorization.

49878533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 49878533 is about 7062.4735751718. The cubic root of 49878533 is about 368.1045824567.

The spelling of 49878533 in words is "forty-nine million, eight hundred seventy-eight thousand, five hundred thirty-three".