552509402 has 4 divisors (see below), whose sum is σ = 828764106. Its totient is φ = 276254700.

The previous prime is 552509387. The next prime is 552509411. The reversal of 552509402 is 204905255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204905255 = 5 ⋅40981051.

It can be written as a sum of positive squares in only one way, i.e., 348905041 + 203604361 = 18679^2 + 14269^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138127349 + ... + 138127352.

Almost surely, 2^552509402 is an apocalyptic number.

552509402 is a deficient number, since it is larger than the sum of its proper divisors (276254704).

552509402 is a wasteful number, since it uses less digits than its factorization.

552509402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276254703.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 552509402 is about 23505.5185435251. The cubic root of 552509402 is about 820.5654448189.

The spelling of 552509402 in words is "five hundred fifty-two million, five hundred nine thousand, four hundred two".