61091562 has 32 divisors (see below), whose sum is σ = 142889472. Its totient is φ = 17048304.

The previous prime is 61091533. The next prime is 61091579. The reversal of 61091562 is 26519016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15108 + ... + 18719.

It is an arithmetic number, because the mean of its divisors is an integer number (4465296).

Almost surely, 2^61091562 is an apocalyptic number.

61091562 is an abundant number, since it is smaller than the sum of its proper divisors (81797910).

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

61091562 is a wasteful number, since it uses less digits than its factorization.

61091562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33882.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 61091562 is about 7816.1091343456. The cubic root of 61091562 is about 393.8465780733.

The spelling of 61091562 in words is "sixty-one million, ninety-one thousand, five hundred sixty-two".