53197402 has 4 divisors (see below), whose sum is σ = 79796106. Its totient is φ = 26598700.

The previous prime is 53197393. The next prime is 53197411. The reversal of 53197402 is 20479135.

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

It is an interprime number because it is at equal distance from previous prime (53197393) and next prime (53197411).

It can be written as a sum of positive squares in only one way, i.e., 52258441 + 938961 = 7229^2 + 969^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13299349 + ... + 13299352.

Almost surely, 2^53197402 is an apocalyptic number.

53197402 is a deficient number, since it is larger than the sum of its proper divisors (26598704).

53197402 is a wasteful number, since it uses less digits than its factorization.

53197402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26598703.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 53197402 is about 7293.6549136904. The cubic root of 53197402 is about 376.0943487769.

It can be divided in two parts, 5319 and 7402, that added together give a palindrome (12721).

The spelling of 53197402 in words is "fifty-three million, one hundred ninety-seven thousand, four hundred two".