50997451 has 4 divisors (see below), whose sum is σ = 51015304. Its totient is φ = 50979600.

The previous prime is 50997437. The next prime is 50997473. The reversal of 50997451 is 15479905.

It is a semiprime because it is the product of two primes.

It is a 4-Lehmer number, since φ(50997451) divides (50997451-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 50997451 - 2²³ = 42608843 is a prime.

It is a super-3 number, since 3×50997451³ (a number of 24 digits) contains 333 as substring.

It is a deceptive number, since it divides R_50997450.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50997421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3570 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (12753826).

Almost surely, 2^50997451 is an apocalyptic number.

50997451 is the 3571-st decagonal number.

50997451 is a deficient number, since it is larger than the sum of its proper divisors (17853).

50997451 is a wasteful number, since it uses less digits than its factorization.

50997451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17852.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 50997451 is about 7141.2499606161. The cubic root of 50997451 is about 370.8367985312.

The spelling of 50997451 in words is "fifty million, nine hundred ninety-seven thousand, four hundred fifty-one".