349996476025 has 27 divisors (see below), whose sum is σ = 504881929071. Its totient is φ = 239983385040.

The previous prime is 349996476023. The next prime is 349996476041. The reversal of 349996476025 is 520674699943.

The square root of 349996476025 is 591605.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 125998731369 + 223997744656 = 354963^2 + 473284^2 .

It is not a de Polignac number, because 349996476025 - 2¹ = 349996476023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349996476023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20697724 + ... + 20714626.

Almost surely, 2^349996476025 is an apocalyptic number.

349996476025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

349996476025 is the 591605-th square number.

349996476025 is the 295803-rd centered octagonal number.

It is an amenable number.

349996476025 is a deficient number, since it is larger than the sum of its proper divisors (154885453046).

349996476025 is an frugal number, since it uses more digits than its factorization.

349996476025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33830 (or 16915 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 64.

Multiplying 349996476025 by its sum of digits (64), we get a square (22399774465600 = 4732840²).

The spelling of 349996476025 in words is "three hundred forty-nine billion, nine hundred ninety-six million, four hundred seventy-six thousand, twenty-five".