50401551 has 8 divisors (see below), whose sum is σ = 68148864. Its totient is φ = 33127640.

The previous prime is 50401543. The next prime is 50401573. The reversal of 50401551 is 15510405.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50401551 - 2³ = 50401543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50401541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118101 + ... + 118526.

It is an arithmetic number, because the mean of its divisors is an integer number (8518608).

Almost surely, 2^50401551 is an apocalyptic number.

50401551 is a deficient number, since it is larger than the sum of its proper divisors (17747313).

50401551 is a wasteful number, since it uses less digits than its factorization.

50401551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236701.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 50401551 is about 7099.4049750666. The cubic root of 50401551 is about 369.3867391575.

Adding to 50401551 its reverse (15510405), we get a palindrome (65911956).

The spelling of 50401551 in words is "fifty million, four hundred one thousand, five hundred fifty-one".