63540700 has 72 divisors (see below), whose sum is σ = 144435200. Its totient is φ = 24235200.

The previous prime is 63540689. The next prime is 63540703. The reversal of 63540700 is 704536.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63540703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319201 + ... + 319399.

Almost surely, 2^63540700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63540700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72217600).

63540700 is an abundant number, since it is smaller than the sum of its proper divisors (80894500).

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

63540700 is a wasteful number, since it uses less digits than its factorization.

63540700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 63540700 is about 7971.2420613101. The cubic root of 63540700 is about 399.0408268054.

The spelling of 63540700 in words is "sixty-three million, five hundred forty thousand, seven hundred".