63375550 has 48 divisors (see below), whose sum is σ = 137884032. Its totient is φ = 21218400.

The previous prime is 63375547. The next prime is 63375553. The reversal of 63375550 is 5557336.

It is an interprime number because it is at equal distance from previous prime (63375547) and next prime (63375553).

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63375553) 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, 12945 + ... + 17155.

It is an arithmetic number, because the mean of its divisors is an integer number (2872584).

Almost surely, 2^63375550 is an apocalyptic number.

63375550 is an abundant number, since it is smaller than the sum of its proper divisors (74508482).

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

63375550 is a wasteful number, since it uses less digits than its factorization.

63375550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273 (or 4268 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 63375550 is about 7960.8762080565. The cubic root of 63375550 is about 398.6948083188.

The spelling of 63375550 in words is "sixty-three million, three hundred seventy-five thousand, five hundred fifty".