261054700 has 36 divisors (see below), whose sum is σ = 572119632. Its totient is φ = 103384000.

The previous prime is 261054697. The next prime is 261054701. The reversal of 261054700 is 7450162.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (261054701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2824 + ... + 23023.

It is an arithmetic number, because the mean of its divisors is an integer number (15892212).

Almost surely, 2^261054700 is an apocalyptic number.

261054700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261054700 is an abundant number, since it is smaller than the sum of its proper divisors (311064932).

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

261054700 is a wasteful number, since it uses less digits than its factorization.

261054700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25962 (or 25955 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 261054700 is about 16157.1872552125. The cubic root of 261054700 is about 639.1122946775.

The spelling of 261054700 in words is "two hundred sixty-one million, fifty-four thousand, seven hundred".