50721896 has 8 divisors (see below), whose sum is σ = 95103570. Its totient is φ = 25360944.

The previous prime is 50721893. The next prime is 50721907. The reversal of 50721896 is 69812705.

It can be written as a sum of positive squares in only one way, i.e., 35402500 + 15319396 = 5950^2 + 3914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (50721893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170111 + ... + 3170126.

Almost surely, 2^50721896 is an apocalyptic number.

It is an amenable number.

50721896 is a deficient number, since it is larger than the sum of its proper divisors (44381674).

50721896 is a wasteful number, since it uses less digits than its factorization.

50721896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340243 (or 6340239 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 50721896 is about 7121.9306371236. The cubic root of 50721896 is about 370.1676766183.

The spelling of 50721896 in words is "fifty million, seven hundred twenty-one thousand, eight hundred ninety-six".