76530545 has 64 divisors (see below), whose sum is σ = 120766464. Its totient is φ = 45239040.

The previous prime is 76530527. The next prime is 76530547. The reversal of 76530545 is 54503567.

It is not a de Polignac number, because 76530545 - 2¹² = 76526449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76530547) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 742964 + ... + 743066.

It is an arithmetic number, because the mean of its divisors is an integer number (1886976).

Almost surely, 2^76530545 is an apocalyptic number.

It is an amenable number.

76530545 is a deficient number, since it is larger than the sum of its proper divisors (44235919).

76530545 is a wasteful number, since it uses less digits than its factorization.

76530545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222.

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 76530545 is about 8748.1738094302. The cubic root of 76530545 is about 424.5657294181.

The spelling of 76530545 in words is "seventy-six million, five hundred thirty thousand, five hundred forty-five".