80205525 has 48 divisors (see below), whose sum is σ = 152133120. Its totient is φ = 41385600.

The previous prime is 80205509. The next prime is 80205551. The reversal of 80205525 is 52550208.

It is not a de Polignac number, because 80205525 - 2⁴ = 80205509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

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, 19009 + ... + 22841.

It is an arithmetic number, because the mean of its divisors is an integer number (3169440).

Almost surely, 2^80205525 is an apocalyptic number.

It is an amenable number.

80205525 is a deficient number, since it is larger than the sum of its proper divisors (71927595).

80205525 is a wasteful number, since it uses less digits than its factorization.

80205525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883 (or 3872 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 80205525 is about 8955.7537371234. The cubic root of 80205525 is about 431.2556142936.

The spelling of 80205525 in words is "eighty million, two hundred five thousand, five hundred twenty-five".