70528550 has 12 divisors (see below), whose sum is σ = 131183196. Its totient is φ = 28211400.

The previous prime is 70528543. The next prime is 70528553. The reversal of 70528550 is 5582507.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70528553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 705236 + ... + 705335.

It is an arithmetic number, because the mean of its divisors is an integer number (10931933).

Almost surely, 2^70528550 is an apocalyptic number.

70528550 is a deficient number, since it is larger than the sum of its proper divisors (60654646).

70528550 is a wasteful number, since it uses less digits than its factorization.

70528550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410583 (or 1410578 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 70528550 is about 8398.1277675444. The cubic root of 70528550 is about 413.1632183816.

The spelling of 70528550 in words is "seventy million, five hundred twenty-eight thousand, five hundred fifty".