53501051 has 2 divisors, whose sum is σ = 53501052. Its totient is φ = 53501050.

The previous prime is 53500999. The next prime is 53501069. The reversal of 53501051 is 15010535.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53501051 - 2¹⁸ = 53238907 is a prime.

It is not a weakly prime, because it can be changed into another prime (53501081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26750525 + 26750526.

It is an arithmetic number, because the mean of its divisors is an integer number (26750526).

Almost surely, 2^53501051 is an apocalyptic number.

53501051 is a deficient number, since it is larger than the sum of its proper divisors (1).

53501051 is an equidigital number, since it uses as much as digits as its factorization.

53501051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 53501051 is about 7314.4412636920. The cubic root of 53501051 is about 376.8085695878.

Adding to 53501051 its reverse (15010535), we get a palindrome (68511586).

The spelling of 53501051 in words is "fifty-three million, five hundred one thousand, fifty-one".