53638454901 has 4 divisors (see below), whose sum is σ = 71517939872. Its totient is φ = 35758969932.

The previous prime is 53638454873. The next prime is 53638454921. The reversal of 53638454901 is 10945483635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53638454901 - 2⁵ = 53638454869 is a prime.

It is a super-2 number, since 2×53638454901² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53638454921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8939742481 + ... + 8939742486.

It is an arithmetic number, because the mean of its divisors is an integer number (17879484968).

Almost surely, 2^53638454901 is an apocalyptic number.

It is an amenable number.

53638454901 is a deficient number, since it is larger than the sum of its proper divisors (17879484971).

53638454901 is a wasteful number, since it uses less digits than its factorization.

53638454901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17879484970.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 53638454901 in words is "fifty-three billion, six hundred thirty-eight million, four hundred fifty-four thousand, nine hundred one".