61533054 has 32 divisors (see below), whose sum is σ = 149172480. Its totient is φ = 18646200.

The previous prime is 61533037. The next prime is 61533067. The reversal of 61533054 is 45033516.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 51202 + ... + 52389.

It is an arithmetic number, because the mean of its divisors is an integer number (4661640).

Almost surely, 2^61533054 is an apocalyptic number.

61533054 is an abundant number, since it is smaller than the sum of its proper divisors (87639426).

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

61533054 is a wasteful number, since it uses less digits than its factorization.

61533054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103613 (or 103607 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 61533054 is about 7844.3007336537. The cubic root of 61533054 is about 394.7930422550.

The spelling of 61533054 in words is "sixty-one million, five hundred thirty-three thousand, fifty-four".