63520470 has 64 divisors (see below), whose sum is σ = 182427840. Its totient is φ = 15634944.

The previous prime is 63520451. The next prime is 63520487. The reversal of 63520470 is 7402536.

It is a happy number.

63520470 is a `hidden beast` number, since 635 + 20 + 4 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5539 + ... + 12558.

It is an arithmetic number, because the mean of its divisors is an integer number (2850435).

Almost surely, 2^63520470 is an apocalyptic number.

63520470 is an abundant number, since it is smaller than the sum of its proper divisors (118907370).

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

63520470 is a wasteful number, since it uses less digits than its factorization.

63520470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18126 (or 18120 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 63520470 is about 7969.9730237937. The cubic root of 63520470 is about 398.9984736218.

The spelling of 63520470 in words is "sixty-three million, five hundred twenty thousand, four hundred seventy".