51523401 has 8 divisors (see below), whose sum is σ = 71066880. Its totient is φ = 33164432.

The previous prime is 51523399. The next prime is 51523403. The reversal of 51523401 is 10432515.

It is an interprime number because it is at equal distance from previous prime (51523399) and next prime (51523403).

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 51523401 - 2¹ = 51523399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51523403) 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, 296025 + ... + 296198.

It is an arithmetic number, because the mean of its divisors is an integer number (8883360).

Almost surely, 2^51523401 is an apocalyptic number.

It is an amenable number.

51523401 is a deficient number, since it is larger than the sum of its proper divisors (19543479).

51523401 is a wasteful number, since it uses less digits than its factorization.

51523401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592255.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51523401 is about 7177.9802869609. The cubic root of 51523401 is about 372.1072863751.

Adding to 51523401 its reverse (10432515), we get a palindrome (61955916).

The spelling of 51523401 in words is "fifty-one million, five hundred twenty-three thousand, four hundred one".