61553465 has 8 divisors (see below), whose sum is σ = 73906560. Its totient is φ = 49214512.

The previous prime is 61553449. The next prime is 61553467. The reversal of 61553465 is 56435516.

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

It is a cyclic number.

It is not a de Polignac number, because 61553465 - 2⁴ = 61553449 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61553467) 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, 13622 + ... + 17568.

It is an arithmetic number, because the mean of its divisors is an integer number (9238320).

Almost surely, 2^61553465 is an apocalyptic number.

It is an amenable number.

61553465 is a deficient number, since it is larger than the sum of its proper divisors (12353095).

61553465 is a wasteful number, since it uses less digits than its factorization.

61553465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7071.

The product of its digits is 54000, while the sum is 35.

The square root of 61553465 is about 7845.6016340367. The cubic root of 61553465 is about 394.8366894194.

The spelling of 61553465 in words is "sixty-one million, five hundred fifty-three thousand, four hundred sixty-five".