7052499981 has 20 divisors (see below), whose sum is σ = 10538929632. Its totient is φ = 4700009448.

The previous prime is 7052499967. The next prime is 7052499989. The reversal of 7052499981 is 1899942507.

7052499981 is a `hidden beast` number, since 70 + 5 + 2 + 499 + 9 + 81 = 666.

It is not a de Polignac number, because 7052499981 - 2⁶ = 7052499917 is a prime.

It is a super-2 number, since 2×7052499981² = 99475511964010000722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7052499989) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 242440 + ... + 269966.

Almost surely, 2^7052499981 is an apocalyptic number.

It is an amenable number.

7052499981 is a deficient number, since it is larger than the sum of its proper divisors (3486429651).

7052499981 is a wasteful number, since it uses less digits than its factorization.

7052499981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30702 (or 30693 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The square root of 7052499981 is about 83979.1639694037. The cubic root of 7052499981 is about 1917.7016027555.

The spelling of 7052499981 in words is "seven billion, fifty-two million, four hundred ninety-nine thousand, nine hundred eighty-one".