76765550 has 12 divisors (see below), whose sum is σ = 142784016. Its totient is φ = 30706200.

The previous prime is 76765543. The next prime is 76765553. The reversal of 76765550 is 5556767.

It is a junction number, because it is equal to n+sod(n) for n = 76765498 and 76765507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76765553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 767606 + ... + 767705.

It is an arithmetic number, because the mean of its divisors is an integer number (11898668).

Almost surely, 2^76765550 is an apocalyptic number.

76765550 is a deficient number, since it is larger than the sum of its proper divisors (66018466).

76765550 is a wasteful number, since it uses less digits than its factorization.

76765550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535323 (or 1535318 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 41.

The square root of 76765550 is about 8761.5951743960. The cubic root of 76765550 is about 424.9998615917. Note that the first 3 decimals are identical.

The spelling of 76765550 in words is "seventy-six million, seven hundred sixty-five thousand, five hundred fifty".