6402624552 has 48 divisors (see below), whose sum is σ = 17407964340. Its totient is φ = 2125897728.

The previous prime is 6402624539. The next prime is 6402624577. The reversal of 6402624552 is 2554262046.

6402624552 is a `hidden beast` number, since 6 + 40 + 2 + 62 + 4 + 552 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4006130436 + 2396494116 = 63294^2 + 48954^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154503 + ... + 191510.

Almost surely, 2^6402624552 is an apocalyptic number.

It is an amenable number.

6402624552 is an abundant number, since it is smaller than the sum of its proper divisors (11005339788).

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

6402624552 is a wasteful number, since it uses less digits than its factorization.

6402624552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346282 (or 346275 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 6402624552 is about 80016.4017686374. The cubic root of 6402624552 is about 1856.8892923284.

Adding to 6402624552 its reverse (2554262046), we get a palindrome (8956886598).

The spelling of 6402624552 in words is "six billion, four hundred two million, six hundred twenty-four thousand, five hundred fifty-two".