61251260 has 24 divisors (see below), whose sum is σ = 147003360. Its totient is φ = 21000384.

The previous prime is 61251251. The next prime is 61251287. The reversal of 61251260 is 6215216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218615 + ... + 218894.

It is an arithmetic number, because the mean of its divisors is an integer number (6125140).

Almost surely, 2^61251260 is an apocalyptic number.

It is an amenable number.

61251260 is an abundant number, since it is smaller than the sum of its proper divisors (85752100).

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

61251260 is a wasteful number, since it uses less digits than its factorization.

61251260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437525 (or 437523 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 61251260 is about 7826.3184192825. The cubic root of 61251260 is about 394.1894611316.

Adding to 61251260 its reverse (6215216), we get a palindrome (67466476).

The spelling of 61251260 in words is "sixty-one million, two hundred fifty-one thousand, two hundred sixty".