525649280652 has 72 divisors (see below), whose sum is σ = 1382100388032. Its totient is φ = 174686965200.

The previous prime is 525649280641. The next prime is 525649280687. The reversal of 525649280652 is 256082946525.

It is a happy number.

525649280652 is a `hidden beast` number, since 5 + 2 + 564 + 9 + 28 + 0 + 6 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495174 + ... + 1138637.

Almost surely, 2^525649280652 is an apocalyptic number.

It is an amenable number.

525649280652 is an abundant number, since it is smaller than the sum of its proper divisors (856451107380).

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

525649280652 is a wasteful number, since it uses less digits than its factorization.

525649280652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634161 (or 1634147 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 54.

The spelling of 525649280652 in words is "five hundred twenty-five billion, six hundred forty-nine million, two hundred eighty thousand, six hundred fifty-two".