49435520281 has 27 divisors (see below), whose sum is σ = 60159183903. Its totient is φ = 40501636560.

The previous prime is 49435520269. The next prime is 49435520287. The reversal of 49435520281 is 18202553494.

The square root of 49435520281 is 222341.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 22467311881 + 26968208400 = 149891^2 + 164220^2 .

It is not a de Polignac number, because 49435520281 - 2⁵ = 49435520249 is a prime.

It is a super-4 number, since 4×49435520281⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (49435520287) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 35796211 + ... + 35797591.

Almost surely, 2^49435520281 is an apocalyptic number.

49435520281 is the 222341-st square number.

49435520281 is the 111171-st centered octagonal number.

It is an amenable number.

49435520281 is a deficient number, since it is larger than the sum of its proper divisors (10723663622).

49435520281 is an frugal number, since it uses more digits than its factorization.

49435520281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822 (or 1411 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 49435520281 in words is "forty-nine billion, four hundred thirty-five million, five hundred twenty thousand, two hundred eighty-one".