49999553 has 2 divisors, whose sum is σ = 49999554. Its totient is φ = 49999552.

The previous prime is 49999529. The next prime is 49999561. The reversal of 49999553 is 35599994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46676224 + 3323329 = 6832^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 49999553 - 2⁶ = 49999489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49999495 and 49999504.

It is not a weakly prime, because it can be changed into another prime (49999253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999776 + 24999777.

It is an arithmetic number, because the mean of its divisors is an integer number (24999777).

Almost surely, 2^49999553 is an apocalyptic number.

It is an amenable number.

49999553 is a deficient number, since it is larger than the sum of its proper divisors (1).

49999553 is an equidigital number, since it uses as much as digits as its factorization.

49999553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1968300, while the sum is 53.

The square root of 49999553 is about 7071.0362041217. The cubic root of 49999553 is about 368.4020520194.

The spelling of 49999553 in words is "forty-nine million, nine hundred ninety-nine thousand, five hundred fifty-three".