352520435405403 has 6 divisors (see below), whose sum is σ = 509196184474484. Its totient is φ = 235013623603596.

The previous prime is 352520435405387. The next prime is 352520435405431. The reversal of 352520435405403 is 304504534025253.

352520435405403 is a `hidden beast` number, since 3 + 5 + 2 + 5 + 20 + 43 + 5 + 40 + 540 + 3 = 666.

It is not a de Polignac number, because 352520435405403 - 2⁴ = 352520435405387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352520435405503) 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, 19584468633625 + ... + 19584468633642.

Almost surely, 2^{352520435405403} is an apocalyptic number.

352520435405403 is a deficient number, since it is larger than the sum of its proper divisors (156675749069081).

352520435405403 is a wasteful number, since it uses less digits than its factorization.

352520435405403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39168937267273 (or 39168937267270 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 45.

The spelling of 352520435405403 in words is "three hundred fifty-two trillion, five hundred twenty billion, four hundred thirty-five million, four hundred five thousand, four hundred three".