51520153 has 8 divisors (see below), whose sum is σ = 56102400. Its totient is φ = 47125008.

The previous prime is 51520151. The next prime is 51520159. The reversal of 51520153 is 35102515.

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 51520153 - 2¹ = 51520151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51520151) 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, 46201 + ... + 47302.

It is an arithmetic number, because the mean of its divisors is an integer number (7012800).

Almost surely, 2^51520153 is an apocalyptic number.

It is an amenable number.

51520153 is a deficient number, since it is larger than the sum of its proper divisors (4582247).

51520153 is a wasteful number, since it uses less digits than its factorization.

51520153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93551.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 51520153 is about 7177.7540359084. The cubic root of 51520153 is about 372.0994670811.

Adding to 51520153 its reverse (35102515), we get a palindrome (86622668).

The spelling of 51520153 in words is "fifty-one million, five hundred twenty thousand, one hundred fifty-three".