50157761 has 4 divisors (see below), whose sum is σ = 50552832. Its totient is φ = 49762692.

The previous prime is 50157749. The next prime is 50157763. The reversal of 50157761 is 16775105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16775105 = 5 ⋅3355021.

It is a cyclic number.

It is not a de Polignac number, because 50157761 - 2⁶ = 50157697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50157763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197345 + ... + 197598.

It is an arithmetic number, because the mean of its divisors is an integer number (12638208).

Almost surely, 2^50157761 is an apocalyptic number.

It is an amenable number.

50157761 is a deficient number, since it is larger than the sum of its proper divisors (395071).

50157761 is a wasteful number, since it uses less digits than its factorization.

50157761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395070.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 50157761 is about 7082.2144135856. The cubic root of 50157761 is about 368.7902073940.

The spelling of 50157761 in words is "fifty million, one hundred fifty-seven thousand, seven hundred sixty-one".