780053250 has 32 divisors (see below), whose sum is σ = 1947014784. Its totient is φ = 208014000.

The previous prime is 780053237. The next prime is 780053273. The reversal of 780053250 is 52350087.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519286 + ... + 520785.

It is an arithmetic number, because the mean of its divisors is an integer number (60844212).

Almost surely, 2^780053250 is an apocalyptic number.

780053250 is an abundant number, since it is smaller than the sum of its proper divisors (1166961534).

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

780053250 is a wasteful number, since it uses less digits than its factorization.

780053250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040091 (or 1040081 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 780053250 is about 27929.4333991938. The cubic root of 780053250 is about 920.5373554239.

The spelling of 780053250 in words is "seven hundred eighty million, fifty-three thousand, two hundred fifty".