83499525 has 48 divisors (see below), whose sum is σ = 155009920. Its totient is φ = 44064000.

The previous prime is 83499469. The next prime is 83499541. The reversal of 83499525 is 52599438.

83499525 is a `hidden beast` number, since 8 + 34 + 99 + 525 = 666.

It is not a de Polignac number, because 83499525 - 2²⁴ = 66722309 is a prime.

It is a super-4 number, since 4×83499525⁴ (a number of 33 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68925 + ... + 70125.

Almost surely, 2^83499525 is an apocalyptic number.

It is an amenable number.

83499525 is a deficient number, since it is larger than the sum of its proper divisors (71510395).

83499525 is a wasteful number, since it uses less digits than its factorization.

83499525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323 (or 1312 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 83499525 is about 9137.8074503679. The cubic root of 83499525 is about 437.0804031445.

The spelling of 83499525 in words is "eighty-three million, four hundred ninety-nine thousand, five hundred twenty-five".