83576525749 has 2 divisors, whose sum is σ = 83576525750. Its totient is φ = 83576525748.

The previous prime is 83576525717. The next prime is 83576525761. The reversal of 83576525749 is 94752567538.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62291174724 + 21285351025 = 249582^2 + 145895^2 .

It is a cyclic number.

It is not a de Polignac number, because 83576525749 - 2⁵ = 83576525717 is a prime.

It is a super-2 number, since 2×83576525749² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83576525779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41788262874 + 41788262875.

It is an arithmetic number, because the mean of its divisors is an integer number (41788262875).

Almost surely, 2^83576525749 is an apocalyptic number.

It is an amenable number.

83576525749 is a deficient number, since it is larger than the sum of its proper divisors (1).

83576525749 is an equidigital number, since it uses as much as digits as its factorization.

83576525749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504000, while the sum is 61.

The spelling of 83576525749 in words is "eighty-three billion, five hundred seventy-six million, five hundred twenty-five thousand, seven hundred forty-nine".