50515061 has 4 divisors (see below), whose sum is σ = 52711392. Its totient is φ = 48318732.

The previous prime is 50515057. The next prime is 50515081. The reversal of 50515061 is 16051505.

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: 16051505 = 5 ⋅3210301.

It is a cyclic number.

It is not a de Polignac number, because 50515061 - 2² = 50515057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2196307 = 50515061 / (5 + 0 + 5 + 1 + 5 + 0 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50515081) 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, 1098131 + ... + 1098176.

It is an arithmetic number, because the mean of its divisors is an integer number (13177848).

Almost surely, 2^50515061 is an apocalyptic number.

It is an amenable number.

50515061 is a deficient number, since it is larger than the sum of its proper divisors (2196331).

50515061 is a wasteful number, since it uses less digits than its factorization.

50515061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196330.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 50515061 is about 7107.3948110401. The cubic root of 50515061 is about 369.6638315016.

Adding to 50515061 its reverse (16051505), we get a palindrome (66566566).

The spelling of 50515061 in words is "fifty million, five hundred fifteen thousand, sixty-one".