52451013 has 32 divisors (see below), whose sum is σ = 75220992. Its totient is φ = 32457600.

The previous prime is 52450997. The next prime is 52451029. The reversal of 52451013 is 31015425.

It is an interprime number because it is at equal distance from previous prime (52450997) and next prime (52451029).

It is not a de Polignac number, because 52451013 - 2⁴ = 52450997 is a prime.

It is a super-2 number, since 2×52451013² = 5502217529452338, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52451093) 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 31 ways as a sum of consecutive naturals, for example, 248478 + ... + 248688.

It is an arithmetic number, because the mean of its divisors is an integer number (2350656).

Almost surely, 2^52451013 is an apocalyptic number.

It is an amenable number.

52451013 is a deficient number, since it is larger than the sum of its proper divisors (22769979).

52451013 is a wasteful number, since it uses less digits than its factorization.

52451013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

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

The square root of 52451013 is about 7242.3071600147. The cubic root of 52451013 is about 374.3271204549.

Adding to 52451013 its reverse (31015425), we get a palindrome (83466438).

The spelling of 52451013 in words is "fifty-two million, four hundred fifty-one thousand, thirteen".