77525226 has 48 divisors (see below), whose sum is σ = 176342400. Its totient is φ = 24567840.

The previous prime is 77525221. The next prime is 77525257. The reversal of 77525226 is 62252577.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77525221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81916 + ... + 82856.

It is an arithmetic number, because the mean of its divisors is an integer number (3673800).

Almost surely, 2^77525226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77525226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88171200).

77525226 is an abundant number, since it is smaller than the sum of its proper divisors (98817174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77525226 is a wasteful number, since it uses less digits than its factorization.

77525226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1168 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 77525226 is about 8804.8410547834. The cubic root of 77525226 is about 426.3972027655.

The spelling of 77525226 in words is "seventy-seven million, five hundred twenty-five thousand, two hundred twenty-six".