61054555 has 8 divisors (see below), whose sum is σ = 73404144. Its totient is φ = 48751200.

The previous prime is 61054547. The next prime is 61054559. The reversal of 61054555 is 55545016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61054555 - 2³ = 61054547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61054559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8581 + ... + 13990.

It is an arithmetic number, because the mean of its divisors is an integer number (9175518).

Almost surely, 2^61054555 is an apocalyptic number.

61054555 is a deficient number, since it is larger than the sum of its proper divisors (12349589).

61054555 is a wasteful number, since it uses less digits than its factorization.

61054555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23117.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 61054555 is about 7813.7414213679. The cubic root of 61054555 is about 393.7670361320.

The spelling of 61054555 in words is "sixty-one million, fifty-four thousand, five hundred fifty-five".