53123402 has 12 divisors (see below), whose sum is σ = 84649110. Its totient is φ = 24998976.

The previous prime is 53123401. The next prime is 53123431. The reversal of 53123402 is 20432135.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 49547521 + 3575881 = 7039^2 + 1891^2 .

It is not an unprimeable number, because it can be changed into a prime (53123401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45377 + ... + 46532.

Almost surely, 2^53123402 is an apocalyptic number.

53123402 is a deficient number, since it is larger than the sum of its proper divisors (31525708).

53123402 is a wasteful number, since it uses less digits than its factorization.

53123402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91945 (or 91928 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 53123402 is about 7288.5802458366. The cubic root of 53123402 is about 375.9198797523.

Adding to 53123402 its reverse (20432135), we get a palindrome (73555537).

The spelling of 53123402 in words is "fifty-three million, one hundred twenty-three thousand, four hundred two".