63401051 has 6 divisors (see below), whose sum is σ = 73752300. Its totient is φ = 54343716.

The previous prime is 63401003. The next prime is 63401053. The reversal of 63401051 is 15010436.

It is not a de Polignac number, because 63401051 - 2¹⁰ = 63400027 is a prime.

It is a super-3 number, since 3×63401051³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63401053) 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, 646901 + ... + 646998.

It is an arithmetic number, because the mean of its divisors is an integer number (12292050).

Almost surely, 2^63401051 is an apocalyptic number.

63401051 is a deficient number, since it is larger than the sum of its proper divisors (10351249).

63401051 is a wasteful number, since it uses less digits than its factorization.

63401051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293913 (or 1293906 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 63401051 is about 7962.4776922764. The cubic root of 63401051 is about 398.7482766408.

Adding to 63401051 its reverse (15010436), we get a palindrome (78411487).

The spelling of 63401051 in words is "sixty-three million, four hundred one thousand, fifty-one".