349797525 has 144 divisors (see below), whose sum is σ = 778610880. Its totient is φ = 136550400.

The previous prime is 349797517. The next prime is 349797551. The reversal of 349797525 is 525797943.

It is not a de Polignac number, because 349797525 - 2³ = 349797517 is a prime.

It is a super-2 number, since 2×349797525² = 244716616992251250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 686971 + ... + 687479.

It is an arithmetic number, because the mean of its divisors is an integer number (5407020).

Almost surely, 2^349797525 is an apocalyptic number.

349797525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

349797525 is an abundant number, since it is smaller than the sum of its proper divisors (428813355).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349797525 is a wasteful number, since it uses less digits than its factorization.

349797525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 552 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 51.

The square root of 349797525 is about 18702.8747790280. The cubic root of 349797525 is about 704.5939515823.

The spelling of 349797525 in words is "three hundred forty-nine million, seven hundred ninety-seven thousand, five hundred twenty-five".