261174725 has 48 divisors (see below), whose sum is σ = 390510720. Its totient is φ = 169478400.

The previous prime is 261174679. The next prime is 261174743. The reversal of 261174725 is 527471162.

It is not a de Polignac number, because 261174725 - 2¹⁴ = 261158341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 268490 + ... + 269460.

It is an arithmetic number, because the mean of its divisors is an integer number (8135640).

Almost surely, 2^261174725 is an apocalyptic number.

261174725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

261174725 is a deficient number, since it is larger than the sum of its proper divisors (129335995).

261174725 is a wasteful number, since it uses less digits than its factorization.

261174725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1065 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 261174725 is about 16160.9011196777. The cubic root of 261174725 is about 639.2102277926.

The spelling of 261174725 in words is "two hundred sixty-one million, one hundred seventy-four thousand, seven hundred twenty-five".