5151455402 has 4 divisors (see below), whose sum is σ = 7727183106. Its totient is φ = 2575727700.

The previous prime is 5151455399. The next prime is 5151455453. The reversal of 5151455402 is 2045541515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2045541515 = 5 ⋅409108303.

It can be written as a sum of positive squares in only one way, i.e., 5145049441 + 6405961 = 71729^2 + 2531^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1287863849 + ... + 1287863852.

Almost surely, 2^5151455402 is an apocalyptic number.

5151455402 is a deficient number, since it is larger than the sum of its proper divisors (2575727704).

5151455402 is a wasteful number, since it uses less digits than its factorization.

5151455402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575727703.

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 5151455402 is about 71773.6400219468. The cubic root of 5151455402 is about 1727.0701634412.

Adding to 5151455402 its reverse (2045541515), we get a palindrome (7196996917).

The spelling of 5151455402 in words is "five billion, one hundred fifty-one million, four hundred fifty-five thousand, four hundred two".