63503442 has 12 divisors (see below), whose sum is σ = 137590830. Its totient is φ = 21167808.

The previous prime is 63503441. The next prime is 63503443. The reversal of 63503442 is 24430536.

It is an interprime number because it is at equal distance from previous prime (63503441) and next prime (63503443).

It can be written as a sum of positive squares in only one way, i.e., 55935441 + 7568001 = 7479^2 + 2751^2 .

It is not an unprimeable number, because it can be changed into a prime (63503441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1763967 + ... + 1764002.

Almost surely, 2^63503442 is an apocalyptic number.

63503442 is an abundant number, since it is smaller than the sum of its proper divisors (74087388).

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

63503442 is a wasteful number, since it uses less digits than its factorization.

63503442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527977 (or 3527974 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 63503442 is about 7968.9046926162. The cubic root of 63503442 is about 398.9628171203.

Adding to 63503442 its reverse (24430536), we get a palindrome (87933978).

The spelling of 63503442 in words is "sixty-three million, five hundred three thousand, four hundred forty-two".