49977751 has 2 divisors, whose sum is σ = 49977752. Its totient is φ = 49977750.

The previous prime is 49977743. The next prime is 49977757. The reversal of 49977751 is 15777994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49977751 - 2³ = 49977743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49977695 and 49977704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49977757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24988875 + 24988876.

It is an arithmetic number, because the mean of its divisors is an integer number (24988876).

Almost surely, 2^49977751 is an apocalyptic number.

49977751 is a deficient number, since it is larger than the sum of its proper divisors (1).

49977751 is an equidigital number, since it uses as much as digits as its factorization.

49977751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 555660, while the sum is 49.

The square root of 49977751 is about 7069.4943949338. The cubic root of 49977751 is about 368.3484977457.

The spelling of 49977751 in words is "forty-nine million, nine hundred seventy-seven thousand, seven hundred fifty-one".