5515151426 has 4 divisors (see below), whose sum is σ = 8272727142. Its totient is φ = 2757575712.

The previous prime is 5515151423. The next prime is 5515151519. The reversal of 5515151426 is 6241515155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6241515155 = 5 ⋅1248303031.

It can be written as a sum of positive squares in only one way, i.e., 4422915025 + 1092236401 = 66505^2 + 33049^2 .

It is not an unprimeable number, because it can be changed into a prime (5515151423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378787855 + ... + 1378787858.

Almost surely, 2^5515151426 is an apocalyptic number.

5515151426 is a deficient number, since it is larger than the sum of its proper divisors (2757575716).

5515151426 is a wasteful number, since it uses less digits than its factorization.

5515151426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757575715.

The product of its digits is 30000, while the sum is 35.

The square root of 5515151426 is about 74264.0655095047. The cubic root of 5515151426 is about 1766.7935848932.

The spelling of 5515151426 in words is "five billion, five hundred fifteen million, one hundred fifty-one thousand, four hundred twenty-six".